Correct you did not. It was your choice of words and icons that conveyed a certain opinion about his post. None of which were supportive.
I can't tell if its a legitimately bad shop or instructor since his opinion counts as only one opinion. I suspect for most people there would need to be history and several poor comments to arrive at a well balance conclussion.
When I work thru the logic and the math on the CC charges it seem most likely that he was charge an artificially high exchange rate or the 7% cost of using a cc was passed along to him. The amount is far to high to be account for by differences between the interbank exchange rates and usually cc companies clearly indicate on a seperate line foreign transaction fees.
Additionally, you and others should not take my post as inferring that your operation does not handle CC transactions in a ethical manner. You have clarified how you do it which seem reasonable to me. If my post was taken that way I appologize. My direct experience has mostly been with car rental companies charging a artificially high exchange rate when converting there USD quotaion into peso which are charged to the credit card.
John
No offense taken. To avoid what you have experienced with rental car companies, ask to see their price sheet. All businesses are supposed to (by law) have their prices posted in pesos in their physical place of business and posting in dollars is optional, but a courtesy that most provide. Your cc charge shouldn't exceed their prices posted in pesos.