Break it down. Then when they buy cheap crap off amazon then charge them again to fixit. I tell them up front if they provide their own part/ supplies. If its the wrong part then I charge to come back. If it breaks I charge to come back. If its broken and doesn’t work blah blah blah. I charge to come back. If I provide the part then it’s my problem which is why there is a markup.
Break it down. Then when they buy cheap crap off amazon then charge them again to fixit. I tell them up front if they provide their own part/ supplies. If its the wrong part then I charge to come back. If it breaks I charge to come back. If its broken and doesn’t work blah blah blah. I charge to come back. If I provide the part then it’s my problem which is why there is a markup.