Reliance Home Comfort

I purchased a home with rental hot water heater (we didn't know at the time) but upon discovering we promptly called Reliance to have them come and pick up their rental hot water tank. We paid the cost of uninstalling their unit and installing ours. They gave me the run around about taking it back, then with a lot of arguing gave me a reference number so that I could drive the unit to them myself. I have no way of transporting unit to them. They told me that is not their concern and quoted me a $125+HST to come and pick it up. They are continually billing me for this heater. I have put a complaint in with BBB. This is the worst company I have ever dealt with. They find anyway to charge you and quote a contract that was never signed. Buyer beware!