Airtime Subscrption still active from 2015 .. not resolved.

Hi I have been observed there is an Airtime subscription on my Edgars account from 18.June.2015 and when I observed it on Sep.2015 I did called the Customer care to cancel it then but they only did it for the sep.2015 to appear on statement and I thought it is cancelled.

Now I have seen again in 2018 July they still taking my money and went to a store to close and paid over R 3000 Plus (I have also used it for some clothing and keep on paying every single month) . But at the store they said to return the deducted money you have to keep the account open.

There is a service fee of R23 every month due to the balance is not ZERO on the account. But how the account will go zero when there is an airtime subscription which edgars created. I don't know where the airtime going to. May be Edgars recharging it self but the payment is distributed to it's customers? I am tried of calling the customer care of Edgars and RMCS . I got bunch of */GO ref. numbers which are useless. The other side of the call center is most of the times they put on hold and the call disconnects.

The bottom line is they are acting like helping from years...and eating my money. I don't is there way to resolve by proceeding legally..