XXXX XXXX I purchased a vehicle from XXXX XXXX XXXX XXXX which I traded in my XX/XX/XXXX Volvo.I then signed contract and release of liability to the dealer.I still have the contract.Three years later I received a letter from a collection agency that I owe them XXXX dollars for the car I traded in, that was towed from XXXX XXXX XXXX XXXX said at the time the car was still in my name.So I went back to the dealer and the dealer before was sold to another company.I spoke with XXXX XXXX and did what they told me and it is still on my credit report.I am really frustrated on what I am going through.The collectors will not listen to me.What can I do.The agency is Dataline Collections in XXXX XXXX California.