Prestige Appliances 50453 Symmetry Electric Kettle

I purchased a model 50453 kettle and toaster set as a present which has been used from January 2007 to late January 2008 the years guarantee would have expired and I have not got my receipt I purchased this set from Debenhams Christmas time 2006. The kettle stopped boiling late January the electricity supply is working as the light is working but the kettle will not boil my question is can we have the kettle mended is there a way to change the element or purchase a base unit or find out why the kettle will not boil?
I would appreciate if you could answer these questions as it is a shame that we have had to buy a very cheap kettle which now does not match the toaster even though the kettle is not that old.

Yours sincerely

Isabella Broome