Overcharged

I hired a car from the 8th of July till the 10th of July and I was billed for 3 days since I took the car at 13:55 and returned it around 15:00. I used ucount to pay for the booking, the total cost was R 762, which is R242 per day. When I got the statement, I was charged another R241. I called the call centre and was told that I paid for 2 days so the additional charge was for the extra day. How is that possible when I was charged R762 while booking? I initially had issues when fetching the car, the email said I need to pay R2800 deposit but when I get there im told its R6000, which is madness. I had to be there for almost an hour for that, which was an inconvenience. Now im charged extra for what? I have never had such an experience with Eurpocar so please refund my money.