Cannot activate Fences

I got a new computer.  I downloaded Fences, but when I try to activate, it says "invalid product key."  I copied the product key from my account. I sent a support ticket yesterday and received a reply with a link to my ticket.  Now for the seriously strange thing: when I attempt to go to my ticket, it asks me for my email address.  After entering my email address, it says it's not a valid email.  I'm logged into my account, and my email is my login.  Since I can't email support (or view my ticket), this is my only avenue for assistance.  (I have done this repeatedly, I know there is no typo in my email.)