Enercare review: Hot water tank - non disclosure of term

I have been paying a rental fee from 2001. In 2015 there was a water leak from the tank and I was in much despair. Enercare sent their tech to replace it. There was no contract. The tech called the office and I was verbally asked a few questions to hurriedly get my approval for the replacement. There was no full disclosure or transparency and no term.