https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/eStore-Returns-Refunds.html
Autodesk store returns & refunds
To return an Autodesk product for a full refund, you must initiate the request with Autodesk support within specific timeframes based on your subscription...
autodesk storereturnsrefunds
https://www.autodesk.com/products
Buy Autodesk Software | Get Prices & Buy Online | Official Autodesk Store
Buy official Autodesk software online and get the latest 3D design, engineering, and animation software.
autodesk softwareget pricesbuyonlineofficial