How can we help?

Most licences arrive by email within minutes. Subscriptions are activated by email within 24 hours, 7 days a week. Very large quantities may take up to one working day.

Yes. Licences and subscriptions are delivered digitally by email, so there are no shipping costs or waiting times. Any regional limits of a product are shown on its product page.

Yes. We serve businesses, resellers and private users. Home users and freelancers order in the shop just like business customers and also receive an official VAT invoice.

Use the contact form or email us with your products, quantities or project scope. You receive a quote within one working day.

A digital download means you receive your software and licence electronically instead of on a disc. You download the installer from the publisher or from the link we provide and activate it with your key or account. There is no shipping and no waiting time.

Check your spam or junk folder first and search for TresBizz. Your order and licence details are also in your customer account under Order history. If you still cannot find them, contact our help desk with your order number.

Yes. Most licences are delivered automatically, day and night. Subscriptions are activated within 24 hours, 7 days a week, including weekends and public holidays.

Contact us as soon as possible. As long as your licence has not been delivered or activated, we can change or cancel the order. After delivery, the TresBizz Guarantee and the terms of sale apply.

If the key has not been used or activated yet, contact us and we look for a solution, such as an exchange for the correct product. A key that has already been activated cannot be returned.

Contact us. We can often source the product within a short time or advise you on an equal alternative, such as a newer version or a different edition.

No. You can order first. After delivery you download the installer from the publisher or the link we provide, install the software and activate it with your key or account.

You can create an account during checkout. With an account you see all your orders, licence keys, invoices and coupons in one place.

Your dashboard shows your recent orders, licence keys and downloads, invoices, personal offers and coupons, your newsletter setting, your details and quick links to our help desk.

Click Lost your password on the login page and enter your email address. You receive a link to set a new password. We never ask for your password by email or phone.

Go to My account and open Your details or Addresses. Changes apply to new orders. If an invoice needs a correction, contact our help desk.

Coupons linked to your email address and current offers are shown in your account under Offers and coupons. Enter the code at checkout to use it.

In your account under Newsletter you can switch it on or off with one click. Every newsletter also contains an unsubscribe link.

Open Order history in your account and choose Order again. The products are added to your cart, so you only need to check the quantities and pay.

Yes. Contact our help desk and we remove your account. Invoices are kept for as long as the law requires.

Yes. We sell genuine licences and subscriptions only. Subscriptions are registered to your own email address, so you manage them in your own account.

Contact our help desk. We fix it, replace the key or refund you under the TresBizz Guarantee.

A perpetual licence is paid once and used without an end date. A subscription runs for a fixed term and always gives you the latest version and updates.

In the email we send you and in your customer account under Licences and downloads and Order history. Keep them safe as proof of purchase.

With a retail Windows licence you can move the product key to a new computer. Remove or deactivate the licence on the old device first, then activate Windows on the new one with the same key. OEM licences are tied to the first device they are activated on.

A retail licence can be moved to another computer when you replace your device. An OEM licence is linked to the first device it is activated on and stays with that device.

That depends on the product and is shown on each product page. Most perpetual Office and Windows licences are for one device. Many subscriptions allow you to install on several devices.

Yes. Keep your licence key or account details. You can reinstall on the same device as often as you need, for example after a reset or a new hard disk.

Yes. Your keys are stored in your customer account under Licences and downloads and in your order email. If you still cannot find it, contact us with your order number.

Most licences work worldwide. If a product has a regional or language limit, this is clearly shown on the product page before you order.

Almost all modern computers use 64-bit. You can check this in Windows under Settings, System, About. Most licences work for both versions and you choose during installation.

Genuine licences activate through the official activation servers of the publisher, such as Microsoft or Autodesk. Every order comes with an official VAT invoice as proof of purchase, and the TresBizz Guarantee covers you if a key does not work.

Choose your product, version (2023 to 2027) and term. The subscription is registered to your own email address and you receive the activation email within 24 hours, 7 days a week.

Autodesk subscriptions are available for 1, 3, 6 or 12 months. For other products, the available terms are shown on each product page.

We offer popular Autodesk products such as AutoCAD, Revit, 3ds Max, Maya, Inventor and more. The full range with prices is shown in the Autodesk category of our shop.

Versions 2023 to 2027 are available for most products. The latest version is advised for new users. Older versions are useful when you work with files or plugins that need a specific version.

In your own Autodesk Account at manage.autodesk.com. Because the subscription is registered to your own email address, you sign in there to download, install and manage the software.

With a single user subscription you can install the software on several computers, but use it on one computer at a time. You sign in with your Autodesk Account to start the software.

Some Autodesk products, such as AutoCAD and Maya, have a macOS version. Others, such as Revit and 3ds Max, run on Windows only. Check the system requirements on the product page.

When the term ends, the software stops working until you renew. Your drawings and project files stay on your computer and remain yours. Order a new term in time to keep working without a break.

Yes. Order a new term of 1, 3, 6 or 12 months before the current one ends. Contact us if you want the new term linked to the same email address.

Yes. Every user gets a subscription on their own email address. For 5 users or more, ask us for a quote with volume pricing.

Yes. The upgrade from a genuine Windows 10 licence to Windows 11 is free, as long as your PC meets the minimum hardware requirements of Windows 11. You start the upgrade in Settings under Windows Update.

Yes. Microsoft 365 is fully supported on Windows 11 and is optimised to work with it.

Microsoft 365 Business Basic offers web and mobile Office apps, email and OneDrive. Microsoft 365 Apps for business adds the desktop Office apps. Microsoft 365 Business Standard combines both, and Business Premium adds advanced security and device management.

Office Professional Plus includes everything in Office Standard (Word, Excel, PowerPoint, Outlook, OneNote and Publisher) and adds Access and extra business features. We advise you on the right edition for your users.

Recent Office versions such as Office 2021 and Office 2024 run on Windows 10 and Windows 11. Older systems such as Windows 7 and Windows 8.1 are no longer supported.

Sign in with your Microsoft account and enter the product key once. The licence is then linked to your account, so you can reinstall Office or manage your subscription later without the key.

Microsoft 365 is a subscription with the latest apps, updates and 1 TB of OneDrive storage per user. Office 2024 is a one time purchase for one device, without new features after release.

Microsoft 365 Personal is for one person. Microsoft 365 Family can be shared with up to six people, each with their own apps and storage.

Windows 11 Pro adds business features to Home, such as BitLocker drive encryption, Remote Desktop host, Hyper-V and joining a company domain. For business use we advise Pro.

Yes. Go to Settings, System, Activation, choose Change product key and enter your Windows 11 Pro key. Your files and apps stay in place.

Microsoft ended regular support for Windows 10 on 14 October 2025. There are no free security updates anymore, so we advise you to move to Windows 11.

Microsoft 365 works on Windows and Mac. One time Office versions have separate editions for Windows and Mac, so choose the version that matches your computer.

Office Home and Business and Office Professional Plus include Outlook. Office Home does not include the desktop Outlook app. All Microsoft 365 plans include Outlook.

Yes. Microsoft Visio for diagrams and Microsoft Project for planning are available in our shop or on request. We advise you on the right edition.

OfficeSuite by MobiSystems is an office suite for Windows, Android and iOS. It opens and edits Word, Excel and PowerPoint files and has extensive PDF features.

A free version is available with basic features. OfficeSuite Premium unlocks all features and extra cloud storage, and is available in our shop.

OfficeSuite opens and edits Word, Excel and PowerPoint files (docx, xlsx and pptx), OpenDocument files and PDF. Files stay compatible when you share them with Microsoft Office users.

OfficeSuite runs on Windows, Android and iOS. The number of devices included is shown on each product page.

For many home users and small businesses it is. It covers documents, spreadsheets, presentations and PDF at a lower price. If you rely on specific Microsoft features, such as Access or advanced Excel macros, we advise Microsoft Office.

Install OfficeSuite from the link in your order email, open it and sign in or enter your licence key. The premium features are unlocked straight away.

Visa, Mastercard, American Express, PayPal, Apple Pay, Google Pay and Klarna. Business customers can also pay by bank transfer, against a proforma invoice or an issued invoice.

Yes, as a business customer. Ask for a proforma invoice and we deliver once your payment is received, or pay against the invoice issued for your order. The bank details and payment reference are on the invoice.

Yes. Card payments are handled by Stripe, a PCI DSS Level 1 certified provider, and screened automatically for fraud. We never see or store your full card number.

Yes. Every order comes with an invoice. Business customers in the EU can enter their VAT number at checkout.

If a key does not work and we cannot fix it, you get a replacement or a full refund under the TresBizz Guarantee. For other questions about returns, contact our help desk.

The shop shows prices including VAT. At checkout you see the exact VAT amount for your country, and business customers can enter their VAT number to see the correct VAT treatment.

Business customers from another EU country with a valid VAT number can buy with VAT reverse charged, where the law allows. Your VAT number is checked automatically in the EU VIES system.

Your official VAT invoice is sent by email and is always available in your account under Order history. You can download it as a PDF.

Yes. If a company name, address or VAT number is wrong, contact our help desk with your order number and the correct details. We send you a corrected invoice.

Usually because of a card limit, a typo or extra security from your bank. Try again, choose another payment method or contact your bank. Your order stays saved for a while.

Your payment is processed when you place the order. If an order cannot be delivered, you get your money back via the same payment method.

Yes. Volume discounts apply automatically from 3 licences. For 25 or more, ask us for a quote.

Yes. Resellers, system integrators and IT service providers get trade pricing. Contact us to open a partner account.

Yes. Tell us how many users you have and what they work with, and we recommend the right edition and term at no cost.

Yes. Send us the products and quantities and we send a written quote that you can use for internal approval or a purchase order.

Yes. Mention your purchase order number in your quote request or the order notes and we add it to your invoice.

Yes. We help you get an overview of your current licences, users and renewal dates, so you do not pay for licences you do not use.

Yes. We supply companies of every size, schools and public organisations. Contact us with your requirements and we prepare a tailored offer.

Yes. Business customers with regular orders can ask for a fixed contact person who knows your account, your licences and your renewal moments.

Yes. We build custom software for businesses, from integrations and automations between your systems to complete applications. Share your requirements and we send you a proposal.

Yes. From company websites to complex web shops, customer portals and platforms with integrations to your ERP, CRM or payment systems.

Yes. We link licences, web shops, marketplaces and back office systems through APIs, so data such as orders and stock flows automatically.

In five steps: intake and analysis, design and planning, building in short sprints, testing and launch, and support afterwards. You see progress after every sprint.

That depends on the scope. After a free intake you receive a proposal with a fixed price or an estimate in hours.

Fixed price for a clearly defined scope, time and material for projects that evolve, and a dedicated team for long term development. We advise which model fits your project.

A website or small tool often takes 4 to 8 weeks. A platform, portal or app with integrations usually takes 3 to 6 months. The proposal contains a clear planning.

We work with proven technologies such as React, Node.js, .NET, PHP and Laravel, Python, Flutter for mobile apps and cloud platforms such as Azure and AWS. We choose the stack that fits your project.

Yes. We build apps for iOS and Android, often with one shared code base. Apps can connect to your existing systems and website.

You do. After final payment the source code and the rights to your custom software are yours, unless agreed otherwise in the contract.

Yes. We offer support and maintenance with updates, security patches, monitoring and further development, with fixed response times agreed in a service agreement.

Yes. We add practical AI features such as smart search, chat assistants, document processing and automated workflows to new and existing software.

Yes. We are happy to sign a non disclosure agreement before you share details about your idea or project.