Hi there. About 3 weeks ago I dropped my car in with the mechanic for a service and to have a new computer installed in my car. (Something they said they have done many times before.) Car has never had any problems, no leaks, no smoke and started overtime. Later that day i got a phone call saying they had blown the engine. I've been enquiring to see how my car is going over the past few weeks but they have kept saying they haven't started any work on the car and are waiting for their car insurance to get back to them. I called them the other day and said I need my car back soon for work and they said they can rebuild it now but i would have to pay for it. Now I'm getting the vibe that they are trying to push the repair bill onto me, they are even using my warranty towards it. Is this right? Do I have to pay anything for an engine they destroyed?