Mobile Content Fee being *******ly included on my account

In February 2017 I phoned in to the Edgars call center to query a couple of transactions on my account that had appeared since January 2017. - a MOBILE CONTENT FEE @ R19.99 I was then told to phone the Mobile Content Division to cancel these \subscriptions""; and i did just that and was told it will be cancelled and nothing was done and i phoned again in march, may, and august they promised me that they'll investigate and cancel still nothing happened instead the amount has been increased to R24.99 a month, today is the 7th December 2017 and i phoned again and spoke to Thandi Shelenge and she promised me the same thing other agents promised, please i need assistance ASAP because i don't know what to do anymore or must i contact NCR? the reference numbers are as follows:EDRF-170 ********** 389,EDRF-170 ********** 275,EDRF-170 ********** 232