Enterprise Rent-A-Car

Had to get a car thorough enterprise car rental cause had a accident and car was in for repairs. First I was told that there is a $50 deposit that I'd get back once car is returned. I paid for the extra insurance on car with came to $127 up front. I received $0.05 credit to my account which is not $50. Then they charged an extra $200 to the account and I don't know why, and then an additional $150 the following day. A total of $350 out my account and was told I got a free upgrade cause that was the only vehicle available. Gas was full when returned vehicle which wasn't when I got car. Insurance company said they paid direct , and I was no where near allowed time of 30 days cause only had for 5 days