Edcon/Jet Repeated calls for no account

Good day, I am amazed that everyday I am getting a phone call regarding airtime that an agent calls and says I owe money for the past 6 months, however I have cancelled it the very same day that I registered and told them I don't want it. I have never received the airtime that they are talking about and I am dead serious when I say that every day I receive a call. This is the very last time that I am going to tell Edcon that I do not want it, never had it. If someone does not delete this off my name, I will take it to the Ombudsman as harassment. Get my name off your system now!