What are the benefits of upgrading the account to ASC?
Read this to get an idea of what an ASC is. You can ask to be given that status if no one at your institution is active in that role.
One benefit is access to the Customer Portal, and another is better response to your questions from ANSYS employees on this site.
Here is a link to the ANSYS Academic Support Policy.
A look at the table provided in this link should help you understand the difference.
Ansys customers with active commercial software licenses can access the
customer portal and submit support questions. You will need your active account number to register.