I have exactly same problem as this guy have ---> http://forum.bitdefender.com/index.php?showtopic=36972
Im from India and bought TS 2012 last year, I still have 135 days remaining but I cannot activate TS 2013 with the same key.
Also Im using windows 8 x64 , so can't install TS 2012 first .... plz provide me best solution or provide me a new key...
I also opened a ticket ID: 201208241014742 but still not resolved.... plz help me
Regards,