Most regretful service and treatment ever

The worst worst ever service provider. I made payment long ago but they keep trying to bill my account even after sending them POP on the 26th. The consultants keep asking for the same thing over and over and it frustrates the hell out of one. I asked for the services to be moved but still to date no communication. I regret this service and a minute ago they still say i never paid. I want to cancel this service please. And i will put this on facebook and twitter as well for this bad service.