This is probably the most common complaint with U-Haul. All I can say is that the term "reservation" should be used loosely when dealing with U-Haul. They do not actually have reservations, they just lie to you. Did you rent a U-Haul truck or trailer that was in poor condition, ...
My wife and I went over there and paid cash for the rental. In addition to paying cash up front, I was told that I would need to run my debit card for “reservations purposes”. I did this grudgingly, and we then got the trailer hooked...