You have purchased cc for teams on February 8th 2015, you need to log in to admin console in the Adobe account & then send invite to your self, the next step is to accept the invite from your Email inbox.
This will activate your seat. Creative Cloud Help | Manage your Creative Cloud for teams membership
http://www.adobe.com/content/dam/Adobe/en/volume-licensing/pdfs/admin-console-user-guide-e n.pdf
Regards
Rajshree