Disappointed by hidden and bad service

Tried to buy a car with a trade in. When we accept the trade in value they made us sign the contract only to request the car disk when they knew it was not upto date for 2 years. Why would i pass the roadworthy of car if i am selling it as is to them Then i still tried to proceed eighths purchase of audi a4. Cabriolet. They said that they would replace the battery as it was flat when the car had beendriven and should have never run flat. But on purchase day they said they would not replace the battery. Then came to the price. We managed to get 58000 but webuycars added a handling fee of 2500. This handling fee can not be legal as webuycars do not pass the roadworthy and as such do not provide the disk to be able to drive the car legally. Never mind this point i asked them yo bring down the price by 2150 to which they say NO HELLO the deal was subject that you replaced the battery which is worth 3000 Then I managed to find the missing 2150 but decided to scrutinize the car even closer after 4 check. Doing went to the ground to look at bottomed car. I discovered that the car was involved in a minor accident. They must have court a pole along the bottom of passenger side from front that end by back wheel rim which showed that the tire had run flat damage and a heavy knock on rim. This justifies the low shudder on accelerating and presume back brakes need for service. Again webuycars has failed to report the bad tire and the accident. So i pulled away frontage deal and left like a fool after spending time and money by coming to their premises I read that webuycars have been sentence to refund over 25 millions rands owing to this bad ethical behavior. I seriously think the business must be properly investigate and held responsible for the s**** they trying to pass unto their customers