I have the exact same problem
Type: Posts; User: xsundevilx; Keyword(s):
I have the exact same problem
Contacted support, no response, also when I activate my key. it just says (cd key already tied to this account), it even installed the DLC, just can't launch it, so my account has it, just not my in...
Bought the AC4 BF season pass, now it says I own it on the shop, but it won't recognize that I own it in game, so It suggests I buy the season pass still instead of recognizing that I own it.