Thank you for the link. It takes me to the page which lists 'How to find your serial number and product key in Subscription Center'. Only problem is, that link is broken and returns an 'ooops' message.This has been exceptionally frustrating. I have paid for a subscription to license my trial version and after 5 days I still can not use what I have paid for!Why can't my Serial Number and Product Key be sent directly to me?????Why to I need to spend days plowing through pages and pages of Autocad online information to find something which should be provided to me immediately upon payment????