Same here, out of the blue got a call on my mobile, worryingly they knew my name and make and model of car and proceeded to pretty much TELL ME they would set up a warranty, like they were doing me a favour. I made a polite excuse to end the call but a week later they rang again (different caller), I told him I was not interested and hung up but 2 mins later they rang again from a slightly different number presumably to try and fool me. I've now blocked their numbers......we'll see what happens next.