This is informative (but not encouraging).
http://www.ukwhitegoods.co.uk/help/about-the-appliance-industry/manufacturer-information/2916-thomson-twin-tubs
There's a possible contact name and number on this page:
http://www.amazon.co.uk/Thompson-X11-1-Twin-Tub-Washing/dp/B00BEVRIO0
" CALL 01905 763376 for the best price.
Manufacturers Web Site : www.twin-tubs.co.uk"
Save up, get a new machine.
XXX, April 2016