Is there such a person?
Anyway, apart from the cost of using a main dealer (!) two problems.
1) There was a loose exhaust, chap had popped to Kwik-Fit to have it checked last month but they said "nothing wrong guv" Renault say needs new bracket and a couple of other bits but as they had fitted it the previous September it was not covered under the 12 month warranty.
2) He had bought a rear light bulb from Halfords a while back. They fitted it. Recently gets warning light on dash "electrical fault" ~ light gone out. Renault say bulb was incorrectly fitted (how?) and has burnt out the fitting. New rear light assembly needed.
£££££££££££££££££££££££££££££££££££££