Dissatisfaction

I can't believe, sold my car and sent an email to car track on the 23rd Dec, they never responded. I just called them today the 8th Jan 2021 and being told must pay because contract was for 3 years. How is that possible? Sell a car because of money challenges no longer working but must pay certain amount, this is how this world operate. I am disappointed on them but learned a lesson will never advise anyone to take any product from them....