Without re-opening an old thread, I went through the fleet utilization log fiasco with Diners and Hertz a few years ago. Diners insisted on the log. Hertz France said they have no log. Hertz USA interceded and requested the log. Hertz France still said they had no log, but provided some other paperwork, which Diners found inadequate. Diners initially refused to pay the loss of use charge. Eventually, after a year of hassles back and forth, Diners agreed to pay the fee, probably to get me out of their hair. Cleary, Diners will not pay this fee without the log. And clearly, based on my experience, they will do nothing or next to nothing to assist the Diners cardholder in obtaining the log from a recalcitrant car rental company.

Interestingly, when I first contacted Diners to ask why the loss of use fee was not paid, I was told that it was because Hertz France did not provide the log. I asked if Diners had requested the log, and the representative told me they had. I asked how Diners requested the log. Rep said in Diner's initial letter to Hertz. I asked that the letter be read to me. The rep read the letter to me, but increasingly haltingly as she began to realize there was absolutely nothing in the letter which requested the log. She said this must be some kind of mistake as they always request the log. Right.