I had a brand new tow bar fitted to my Toyota 4 x 4 Surf when I was down in London for the weekend. On my return to Worcestershire I discovered that the socket on the car was a 7 pin and not the 13 pin that I had requested. I would like to have a 13 pin adaptor fitted as it offers a more secure connection. I do not want to travel all the way back to London to have the socket changed. I have been quoted up to £150 for the job which I think is rather excessive. Can anyway recommend a tow bar fitter in the south West Midlands that can fit a 13 pin socket on the car at a reasonable price? Alternatively I suppose I will have to consider another 7 pin for the caravan. Any suggestions regarding a fitter and twin electrics? Thanks.