My son just received his private pilot license. I have been asking his instructor for an itemized bill for several months. I paid him a certain amount with the agreement that if he goes over, I will pay him; if he does not use it all, he will reimburse me. When I finally met with him to get a copy of the itemized bill, he said he didn't have one. When I asked again, he told me that he was charging me for 50 hours of ground time with my son that he had absolutely no documentation for. He literally "guesstimated" right where he sat! My son only had 5 hours documented. So, my question is: Is it standard or acceptable practice to charge for undocumented ground hours?
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