services suspended

My services with Multichoice are being suspended everymonth saying that I have an outstanding amount that needs to be paid for July 2015, I have been sending proof of payment more than ten times since, and nothing is being done. Twice or thrice in a month they suspend my service and, I have to take my phone, my airtime call them everytime, and you don't even get joy talking to the agents, as they are trained to lie. Multichoice is not taking responsibility with the launching of the new systems, and giving their customers credit and support by making sure we are satisfied, instead they do the opposite. I wish they can have a competitor for the services they are rendering, maybe they will up their game. They should atleast have a toll free number that we use for queries.