Internet Security 2012 Renewal To 2015

Hi,

I bought a new pc and followed some bad advice on how to transfer bit defender to my new pc. i cannot find a copy of the 2012 internet security to download so I'm left with two alternatives:

Either I have to download the 2012 version elsewhere (I cannot find a copy anywhere) or renew and get the 2015 version.

I have 200+ days on my 2012 edition and want to renew (upgrade) to 2015. If I purchase this do the extra days get added on? I don't want to lose those days.

or

can anyone post a link to a site that has the 2012 version?

thanks in advance.