Thanks for that. I can confirm they have good customer service - they were the only people to reply to my queries, although sadly they can't supply a suitable part!
The grill element in our oven went pop the other day. I've found this replacement element for it (it's a Homark 02-800100 oven):
http://www.espares.co.uk/part/cookers-and-hobs/p/1092/0/0/0/131958/top-grill-element.html
However, the feedback indicates that the two mounting holes are...
If anybody is interested, this was an easy fix. The belt had simply come off. Easy to see when I took the top off, and easy to put back on by taking off the access panel on the rear.
Just had a quick look at the MIL's Exxcel 1200 because she said it wasn't spinning. I started the spin program and it counted down from 11 mins as normal, and the whining noise was present which I presume is the motor. But the drum wasn't turning. Is there a rubber belt that's connecting the two...