X100 SAB Out of Warranty

I just contacted Fuji UK about getting the sensor replaced on my X10 (white orbs issue) - which I bought in Australia last year.  All they asked for was the serial number and they are sending me pre-paid packaging to send them the camera.

They didn't ask for a copy of the receipt - yet.  I hope they don't because I have no idea where it is!!  (Fingers crossed.....)