Subscription I Didn't Sign Up For.

I have discovered that my bill went up double in the amount for December, when I checked my invoice it was an added product for subscriptions, I called their contact cemtre and they couldn't assist they could only cancel the subscription which was only a partial assistance but I am having to pay and additional r800 for something I didn't sign up for and the assistance to try and investigate is not even there. It's unfair that all we get told is you can cancel it and that's that. I don't even know what subscription it is, it has never been used and R800 later! This is very disappointing as I've been a telkom user for a while now and to have to receive this and just have to pay it without any urgency of investigation of some sort. I am having to sit with the burden now.