I'm a registered student and UC Berkeley which gives me access to Adobe products. I've been using the trial version and it just expired but when I tried to put in the serial number that is on the "my products and services" webpage it said that the number is invalid. I found the number under "My Products", next to "Adobe Acrobat Professional". It says "version 11", "platform Mac", and "registration date: February 18, 2014". I found the same number when I went to the "My Adobe" webpage. Does anyone have any idea what could be wrong??
Please try the below mentioned link
Kindly send us the serial number via [Private Message] so that we can assist you appropriately.