TELKOM *****ing clients money and not taking responsibly for it

I got a data contract with Telkom, by monthly subscription is R109.00 - for the months of September 2025 they debited an amount R333.00 . When I contacted Telkom I was told that it is for "Event Billing " some of other subscription. They don't know how it happened or what caused it. I was just told that they won't refund me and that I need to dail *179# which does not exist !!!! this is totally unacepptable as i am using a router and cannot subscribe for anything on a router. I feel that this is ***** and *****ing from clients. TELKOM is responsible for the actions. THEY are responsible to refund the amount. I was also told that they are not investigating the issue and must just dail *179# which does not work - I have cancelled my contract with immediate effect