I had another good look around but could not find any other code. I contacted the dealership where the car was first registered but they had the same code.
They did say that if I provide proof of ID and take out the radio and get the serial number of the back, then they could email seat for the code.... but I suspect I will fork out the £25 notes and get it done that way... at least that should be quick.... its amazing just how much you miss the radio when its not working...