I'm trying to open Adobe Pro but it says my trial period has ended and I have to subscribe. I signed up for a one year subscription in August, 2014, so why isn't it recognizig that?

I signed up for a one year subscription, but now when I go to open Acrobat Pro, it says my trial period has expired and sends to the the subscription page.  How do I get it to recognize my one year subcription?  I don't have any software license numbers, other than my order # and confirmation.