i was tricked to do it before. they charge RM90 per screw. need to change two. but fortunately i went and get second opinion, with more advance alignment system, and i was told that my camper screw was perfectly fine.

fortunately they asked first before doing anything
but then to be sure, always keep an eye and make sure they don't do anything
anyways, if you're not paying, they will definitely need to put the original one back
they should have asked before doing anything