K12 radio code help please

Hi all

I've tried the online code generators to get the code for my mum's K12, but haven't managed to get it to work. Is there anyone who has one that could sort me out with a code please?

The number from the back of the radio unit is BP 3349 4733 4996. Is this the only number I'll need to get the radio code? Please tell me it is, otherwise I'll have to take the dash to bits again!

The Nissan dealer wouldn't even give her the code with this number, they said they'd need to send off for it and it'd take a few days, and they still wanted £30!!

Any help much appreciated.