Bad Customer Service

I called AT& T to get internet service back in May of 2008, the service was unable to be connected due to the wiring in my building, I contacted AT&T, they were suppose to send someone out, the technician never showed up or called, I contacted AT&T to cancel my service, due to the wiring, and was told I was still responsible for the bill, after trying to prove to them that I don't have service, have not had it since I called back in May, they gave me the run around, still no resolution, I've to a Shauna in Resolution, who had a very gross disposition, I will never ever refer or consider At&t again in life!!!!!!!!