Activate Acrobat Pro DC

I am having an issue activating my Acrobat Pro DC Student and Teacher Edition (Pro DS SaT) product. I have the physical product, I went through all the steps to get it validated and link the serial number to my Adobe Account. However I also have a subscription to Creative Cloud Student and Teacher Edition with 2 seats. I am currently using both seats on other computers. I installed Pro DC SaT with the product disk, went through all the activation, put in the serial number, everything was fine. Then it asked for an Adobe account, so I put in my account info. Then it told me that both of my Creative Cloud seat were being used and that I needed to deactivate one of my other computers.

Did I do anything wrong? How can I get this activated and make sure that both of my other computers still have access to Creative Cloud?