Bargain car rental, great service, but ruined by scam at the end of the rental...

Absolutely brilliant, and a bargain price for a one way rental - HOWEVER, the whole experience was ruined afterwards. I checked my bill I was handed when I got home and noticed that I'd been charged for ⅛th tank of fuel. The thing was the the woman who checked it in (a third party agent, not budget) didn't even check the fuel gauge. She handed me the receipt and said that's $56. I agreed to walked off. When I looked later it was for $83 - and there was a refuelling charge. I'd literally just filled it up before dropping off at the nearest gas station. I have all the receipts to prove it. A little bit of Googling it when I got home, shows this is a common scam. The check-in agents (as I said third party company) are on commission for extras such as gas tanks not filled. Most customers are dropping off and getting on a plane so won't look at the receipt, especially when the agent quotes the original price. Luckily (?) I'm going back there on Thursday so will be taking it up with the manager. It won't stop me renting from Budget again if the price is right but I'll be very careful when handing back.

Good work finding a bargain price!