Went to pick up my car rental in Uruguay today at Thrifty. I was on time, but they said car wasn't available and they had another option, but because it was in another class, I'd have to pay extra (70USD Extra per day). They would not honour my car booking I made from their website along with the email confirmation which showed the details. They would not help me at all, or offer and kind of assistance. Basically it screwed my plans up with no other options for today.

called reservations and got the same guy over and over again ("William") who hung up on me every time I asked to speak to a manager. He said he would not be able to help me.

Finally, after calling 5 times to reservations, I was able to speak with a manager (the first 4 times this William guy answered and hung up immidiately on me when I told him my name). I was able to speak to a manager who said it was the decision of the local rental place and I have to work it out with them. Thrifty would not be able to make sure the Thrifty in Uruguay honoured the reservation. She gave me a customer service line to call but they are only open during the week. ...

ive never had such a terrible experience. Any time there has been a problem, the car companies usually went out of their way to make it right. In this case, my expectation was that they would honour the original reservation at the reserved price and give me a car in another class if it was all that was available. Nope. They decided that screwing over a customer was better than making it right.

Any recommendations if there is anyway I can get thrifty to make this right?

My my lesson is. Don't use thrifty. So, I've definitely learned something.