Hi, new here looking for reassurance hopefully. I recently listed my 2023 rs5 almost mint apart from a small scratch on motorway auction site. The winning bid was a car showroom from Harrogate. Upon inspection they wanted £1750 off the price for 2 front discs. They claimed were badly deteriorating. There is a tiny half millimetre ridge to the outer and the vented holes are slightly clogged. I’ve had the car from 450 miles and covered 16300 now. Always easy on the brakes and never charge at junctions. Also passed a mot 2 days prior to sale. Is the garage trying to con me or should is the brakes genuinely needing replacing