Hi MOBY36, checked my records and there's nothing specific on the paperwork from the dealers, with the paperwork carrying the standard warranty terms on the reverse.
Checking my notes I gave up recording all the back and fore through frustration and annoyance.
IIRC, the labour probably had a 6 month cover, and the part 2 years (don't think it was 3) as I remember thinking "... if it's going to fail every 2 to 3 years it's going to cost me £550 each time..." .
Good luck.