Frontier Communications Frontier Charging me for equipment I never possessed and was taken by the previous homeowner Bothell Nationwide

I signed up with Frontier to install their internet service. They told me that installation was free. When they got to my home they said that the equipment was missing. I told them that I had purchased the house as a foreclosed home, and that I bought it as-is and the box or equipment was not present when I bought the home, as well as other items were missing an or broken, as one might expect with a foreclosed home. They said okay, no charge on the install. But then they failed to install it correctly, and had to come out about ten times to try to fix it, each time they tried to get me to pay for installation, I said no, that I would cancel if they expected me to pay for installation. They were asking for around $100.00 dollars. So, finally they get it installed and it works and they send a bill for something like $100.00 installation fee. I called complained and they dropped it. Now they sent me a damage repair bill for $579.71 for a bad line. They came out and ran a line, did it wrong, had to come out a second time and rerun the line, and now they want me to pay for it. This is the tenth time they keep trying to get me to pay for a combination of their equipment going missing long before I moved into my home and their constant failures to setup the new equipment correctly, where they had to come out over and over again to try to get it right.