Late fee for an admin error has compelled me to close my Zipcar account

I received a late fee for my most recent reservation. Last weekend, I reserved a car for two hours and returned the car 20 minutes early. And yet, your system insists I reserved a car for one hour and returned my car 40 minutes late.

I called and your customer service person wasn't able to help me. She insisted it was my mistake. Perhaps I chose the wrong time on the drop-down box. Perhaps not. I can't really know why it happened, but maybe you should pretend to believe your best customers when they have a problem like this.

Who reserves a car for one hour? And, then, who returns it 40 minutes late?? Five minutes, yeah, but forty??? Not me. I've *never* been late; I don't complain when people leave trash or dog hair in the cars (you even called me once and accused me of bringing a dog into the car -- I don't even have a dog!); I regularly report lost items; and I do my best to evangelize for Zipcar by telling my friends and family how great your service is.

But not anymore. I just went online and closed my account -- which the customer service person on the phone wouldn't allow me to do over the phone. I will not pay a $50 late fee for a reservation glitch.

Goodbye, Zipcar. You did so many things right, and I always was proud to use your service, but there have just been too many little details that have turned me off.