@Anonymous
Welcome to the community...
In addition to @mcgyvr and @Curtis_Waguespack information.. Your Autodesk support is based on what you purchased..
If you have an active subscription (maintenance or term) you get free basic web support through your Autodesk Account. However this is automatically assigned to the person or persons that are assigned the contract admin and software coordinator of your subscription. Individual accounts of the subscription must be granted this benefit by the contract admin. Basically you log support issue through your Autodesk Account.
If you purchased advanced support then the contract admin of your subscription will have a express ID # and the phone # you will use. This gives you one on one access for support
If you purchase certain products like Acad LT, Revit LT and etc, you automatically get free adv support as I indicated above.
In addition certain resellers offer technical support as well. It may be free and others may charge for it. Do you have a reseller?
If you are using a trial version or educational (free) version then you support is limited since you have a free product.
Mark Lancaster
& Autodesk Services MarketPlace Provider
Autodesk Inventor Certified Professional & not an Autodesk Employee
Likes is much appreciated if the information I have shared is helpful to you and/or others
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