[Ron61]

That sounds like a rip off from the word go. Their master mechanic was probably lying as he works for them. I tend to agree with what Cycleguy said. If they push it, I would consult an attorney and get legal advise. Be sure to keep copies of all papers and any correspondence you have with any of the parties involved in this mess and also if you talk to them take a recorder and inform them that you are recording all conversations.

Ron