That place on Shambles Street just before the gym; there's a small charge to assess if it can be fixed, this is then knocked off the final bill. (incidentally, I took it to the stall on the market first - after several attempts they were still scratching their heads).
http://www.pctel.co.uk/index.php?route=common/home 12 Pitt street. Father & son operation. I always use these if I want somthing.
