Account subscriptions & once-off charges: Event Billing Usage

Telkom subscribed me to an "event billing usage" for a company called "hipstia games: hulk mobile wallpaper", which I did not subscribed to and they have being billing me from the 1 October 2019. One of the consultants advised me that it shows that I subscribed to it on their system but I never did, we also tried to locate this background subscription on my phone and we did not find it.

I Googled what this event billing usage was and found out that there are a lot of cases like mine were customers complained about this event billing. A lot of customers cannot be complaining about the same thing and Telkom ignores it and say they can't refund/credit their clients for these supposed subscriptions we made.

This is utterly disrespectful to our intelligence as clients to be told that we subscribed to things we don't know about. Telkom is making billions on this event billing usage they charging their clients. They are making money off their clients, smh! They are ROBBING THEIR CUSTOMERS AND THIS MUST STOP!!!