I need some work carried out, under warranty, on my 148hp Perkins engine. The nearest, to me in Dover, authorisd dealer is on the Medway but having booked a call with him several weeks ago, did not turn up and when I phoned said he was "too busy" but would call the next day. Once again he did not turn up and once again did not phone to explain. His phone is now unanswered. How do I get my engine repaired? Any thoughts?