Rooter Man GTA

I live in a condo and the building kitchen stack backed up into my kitchen sink. Rooter Man came in promptly and assessed the problem but didn't tell me that backup from the stack is a building problem rather than an individual unit problem. They said that they needed to snake the stack from under my sink and that they should be able to clear the issue unless the clog was located more than 25 ft. below my unit. The plumber accessed the stack from under my kitchen sink and claimed that he snaked the drain 25 feet down which he claimed took him to the start of the unit two below mine. He said that the clog was far below my unit and that I would have to get my building management to provide Rooter Man with access to the main stack. I contacted my building management and they said they would have their preferred plumber fix the issue. Rooter Man then billed me $400 despite not resolving the issue. Later that afternoon the building's preferred plumber came in, accessed the stack directly (rather than via the sink) and cleared the clog which was located just below my unit. The issue was not that the clog was too far down, but that Rooter Man didn't properly access the stack and snake it. I sent an email to Rooter Man asking for a refund and haven't even had the courtesy of a response. I would not recommend Rooter Man GTA under any circumstances!