So, I decided to re-image my comp a couple of hours ago. Finished within half an hour and thought "I'll be sensible and put Bitdefender back on first". I then realised I hadn't kept a copy of the install package (hey, I'm human) but thought it'll be a one minute download from Bitdefender...
An exceedingly frustrated half hour later I am NO CLOSER to resolving this issue!!! I know I'm eligible to a free upgrade from 2012 to 2013 but obviously Bitdefender never considered the staggeringly unlikey chance of anyone ever re-imaging their PC as this only works if you have 2012 currently installed!!!
I have had to resort to installing the trial of 2013 (which doesn't accept my current key with 221 days left to run) and am seriously contemplating looking for a copy of the 2012 install package on a warez site (and no, I buy all my software and music and don't make a habit of using warez sites).
SERIOUSLY UNIMPRESSED BITDEFENDER!