I made a reservation through Southwest for a rental car with Thrifty for April 12-16th 2021 at a rate of $48/day with a total estimated cost of $303.49 after taxes & fees. I picked up and returned the car without issue. At return, I asked for a receipt and was told it would be emailed. I was never emailed the receipt, but my credit card was charged for $1, 276.64. Upon requesting a receipt, I was charged a rate of $235/day. I've called, filed an online complaint, contacted them through social media and have never received an explanation of the rate difference. I also filed a dispute with my credit card company who sided in my favor and refunded the disputed amount. However, Thrifty is now sending invoices for the amount in question with threats to send it to collections.