Reverse all your airtime/data subscription fee, I don't receive them

I have an account with Edagars. Since the statement from April 2018, I get charged for AIRTIME/DATA SUBSCRIPTION FEE R78 every month with April statement charged twice. I have visited Edgars stores on 2 occasions to cancel this subscription fee. I do not receive this Airtime/data but I pay for it every month. This has to stop. I am frustrated because my bill keeps increasing due to services I do not get or use. I want Edgars to REVERSE all the money for the past four months. Also the interest charged due to this amount. Credit my account. This has to Stop Edgars