Endless WASAP charges !! Moth after month!!

My contract is suppose to be R373.32 a month. That's what my debit order is set for uncapped DATA account. But I keep getting content subscription charges each moth that I'm not subscribing to.. This is not the first time this is happened so I keep using the *141*5# string through the moth to try and cancel the whole time. But it keeps getting worse!!! Ive gone to the shop on three separate times and they cancel and drop the charges, but when will it end? Currently I have R1568.80 outstanding!!!! This is after I have paid my R373 every month. Ive tried email to a email I got on the internet dealing with WASPA and it doesn't work.... I don't want to cancel the contract and have been using it for 8+ years now. But there has to be a way to stop this nonsense, but I can't seem to find it and MTN is providing me with no solution, just more charges for stuff I get nothing but headache's and endless trips to their shop!! I am deeply disappointed. They spent billions improving on their network coverage, but can't get a grip on the service they provide....OMW