Trying to Cancel After BAD service.

I have been trying to email in cancellation of a business line for the last week. Every time I call in I get given a different email address to send it to, all 3 email addresses come back, saying unable to deliver. Had a month of no service, no incoming calls, got told that it will be 48 working hours, after a month we finally got a technician in. They fixed the line the day we moved over to a wireless company. I need to give notice and cancel, Not going to pay for something that we don't want or doesn't work. - Terrible service. <br>