First, you need to make sure that you are either the Primary or Secondary admin of your Autodesk Contracts, if you are not, just make sure you have at least a seat assigned to your account, this seat can either be a standalone or network seat.

More info about assigning a seat to a user can be found on this link:

https://knowledge.autodesk.com/customer-service/account-management/users-software/user-management/assign-users-to-products 


Then, follow the link below to get access to the Autodesk Support Channel.

https://knowledge.autodesk.com/contact-support