Teleplan provide warranty service for various companies:

Mastercare
Toshiba Warranty
Others

I am dealing with them at the moment and the number they called me on was:

01206 785 000

This is tested and working, and is also already in the database as unverified. It can therefore be verified now.

01206 785102 is also tested and working, however this doesn't give the selection options and just dumps you straight in one of their call ques. I've no idea which, as I used the first number, and its the one I'd reccomend.

Cheers