broken promises

I have never had a worse customer service experience. In March, my housemate called to switch the account to my name before they moved out. We spoke to an agent who told us we would not switch the account over until we activated the new account (when I moved in and my housemate moved out on April 1st). When I got to the house, I had a bill for the entire month of March, even though I had not activated or used the service, or even been in the state. I called to ask about it and was told that of course that charge would be refunded since we had not activated or used the service, and it was duplicated with the charged service at the same address under my housemate's account. I have talked with I believe 8 different agents since then who have all assured me they are taking care of it. The last agent I spoke to told me none of the prior agents had actually filed a ticket! She filed one for me and assured me it would be taken care of. I got an email notification a few days later saying my ticket had been closed with no explanation or resolution. Now I can't get through to a person. I am beyond frustrated by all these broken promises and robbery.