Forcing a client to do chip repair even if the is no chip

I visited glasfit Kempton park to do insurance inspection the guy who did the inspection first thing he looked for was to get a windscreen chip on the windscreen then he insisted on the is a chip and i could see that is not a chip the car is dirty but he said if i do not pay the R250.00 then he will mark that the windscreen is damaged and the insurance won't cover i really feel that is **************** as if you don't pay you will lose more than that and i believe the is an incentive for them if they get a chip on the car. According to me they maximize their profit by trying to get more than the insurance pay them for the inspection. I'm extremely disappointed.