EnerCare Home Services review: Water tank contract end date

I bought my own water tank after my eleven year old Enercare tank started to leak. My contract with Enercare clearly states that the contract ends when the useful life of the water heater has ended. Enercare sent their rep to my house April 22 and he deemed the tank non-repairable. As per Enercare contract – if the Water Heater has reached the end of its useful life and we are not installing a replacement Water Heater, you shall at such time own the Water Heater. Enercare customer service has contacted me insisting that I shall have to pay the buy out on the tank if it is not available for them to pick up, (this amount is approx $700) or pay a $ 75 fee for them to come and get it. I will be fighting this as I am protected by the Enercare contract. Ironically it was their customer service department that suggested I look up my contract. It seems they do not know what it says either. I live in a Condo, I will be educating my Condo Corporation on how to get out of these terrible contracts. I wonder how many people have been charged incorrectly and paid the amounts.