Payless car rental Fraudulent charges. Las Vegas Nevada

So fellow car renters here's my story.

I reserved a car thru Hotwire from Payless for my Las Vegas get away.Yes they were the cheapest .I see now you get what you pay for.I arrived in Vegas late around midnight and took the shuttle to the rental terminal.I was dismayed to see the Payless line was a mile long and just two people working the counter.And to make matters worse they spent 20 to thirty minutes per customer trying to sell the various products car rental people try to sell you.Right there I should of known anyway at 3 am I finally got my car.No problem the car was fine.However when I returned the car the lady who was complaining she was overworked because someone quit handed me a paper to take across the parking lot to someone else to check me out.I brought vehicle back full on gas.the guy gives me a paper and said I'm good mind you this is at 5 am and I wasn't even awake yet.So I get to the airport and notice a 90$ fuel charge.Also the paperwork showed I had driven vehicle 16000 miles in three days wow.Obviously they got my car mixed up with another..So I call them ,rather than admit the error they demand a receipt for gas within 5 miles of drop off location.when I told them I paid cash they said I was at fault.Most companies would not question the client.apparently Payless is in the process of ripping people off.No worries I just will never use them again.I just wanted to let others know about my experience before they make the same mistake.