I copied over a few pre-made level 80s to the PTR. However, when I try to play, it gives the same error message as if you try to play a DK after your 10 day WotLK trial ran out (Character is locked, contact billing for more information). I also can't make a DK when I go to create new character (it's greyed out, as if I didn't have WotLK). However, I DO have WotLK, so I don't know why that's happened.

Any tips?