sold car

I called sanral today regarding a bill theyve been sending for a car that ive sold already more than 12 months back i send them an email to inform them that i have sold the vehicle but im still receiving a bill that increases every i call the call center today to enquire and inform them again that i dont have the car i was told that i will have to pay and get my money back from the new owner of that vehicle how does it make sense for me to pay for a rute i didnt use i asked if i get the details of the person who bought the car will they bill that person and i was told no i will have to pay,thats very unfair and does not sound right at all why should i have to pay for a car i dont have and a road i didnt use,sanral is really just make money and not to find workable solutions.I cannot be expected to pay that bill i will give their tag back but i wont pay for a car i dont have and a road i didnt use.their business is to bill for a road used by a owner of a car im not the owner i didnt use the road stop trying to make money out of people and start looking for workable solutions ZLL837GP does not belong to me anymore.ref for my call earlier ***