Unknown charged subscription

I’m so frustrated by telkom at this I don’t know what to do, Telkom started debiting my account extra R200 since September. I’ve called multiple times I was told it’s a subscription on my account on a router SIM card that I know nothing about. I called to get my account credited and I’ve been promised that it’s been escalated they will cancel. They haven’t cancelled it to date and I’m still debited for that subscription. If someone is thinking of taking telkom services you better not because I’ve never struggled so much to cancel something I didn’t even subscribe for. I just want my money back because what is this!!!!!!!!!🤬