@Fnelle92 If you bought the pack through Origin activation was automatic. There is a purchase history in Origin which should have the code if you bought Seasons through Origin. If it was the disc version and if the computer was a pc - the code should still be in the registry if that computer hasn't been reformatted. Google gamekeyrevealer - download and run. If the code is still in the registry that code may be displayed. It seems that game codes are more an activation code then a registration code and the codes are no longer retained because once a code is used and the software is activated the code is no longer needed. Is it possible you registered the pack to a different thesims3.com account?