I recently fell with my Sony A7 around my neck. The camera hit the ground and the lens parted company from the body. Since then, although the lens will attach to the body, it is lose because the lens mount on the camera is damaged. I have obtained an estimate for repair: a total of £407 to dismantle and replace parts, reset all contacts and set functions to manufacture's standards, front plate assembly, body mount and contact set. Am I being ripped-off at £407 or is this par for the course?