Reliance Home Comfort

Bought townhouse, came with reliance equipment. Never received the contract (after dozen of requests and assurances it will be provided), they just arbitrary billing us and the previous owner, they created some bogus accounts on our names and also did try to bill us, added "services" and "protection plans" without asking and did not remove it for a year, after we specifically told them to remove it, recalculated all fees without any explanation whatsoever, and now they sent another bill to our tenants, after telling them they not dealing with tenants... Every time we call to sort it out we hit a wall of incompetence or a strategy to waste our time- they don't know what is it, they can't do these changes, we need to wait another month to see the changes etc... and nothing changes. Have I mentioned we still don't have a contract after a year? Oh, and after 6 months or so the lawyer of previous owner contact our lawyer asking us to compensate them - apparently Reliance did bill them all this time too! It seems the strategy of the company is to open an account and start billing whatever, and let customers to hit the unenterable wall of so called "customer service"