[damien c]

if you can't get it fixed which i doubt you will to be honest try acting dumb saying that you turned it of etc and now it won't come on and basically you think it is dead.

then let them take it to a pc shop etc so then they think it has just gave up on them and then, they might replace it themselves with a newer one which then you should get away with it, sounds cruel but if they are as bad as they seem by what you say (no offence intended) then it's either lie or you replace it and dependent on what they need it to do it could be between £250-£600.

not saying that it's the best idea but worth thinking about as a last resort or something.