My Tern hit a car that pulled out in front of me on a roundabout. The front wheel is badly buckled and there are a few other issues, but the one I am most concerned about is the central folding mechanism. The lever seems to be stuck and I don't know whether the mechanism is broken. I want the bike to be repaired but how can I be sure that the frame's integrity is tested to ensure my future safety. Also, although the driver has admitted fault, the insurance company want to fob me off with the bike's current value, but I do not want a second-hand bike whose history I do not know, which may fail at some point in the near future. Is there some accreditation I should be checking of the bike repairer?