Fed up with Telkom

I've been struggling with reaching Telkom Business for assistance with my fibre line since January. Telkom is busy debiting my account incorrectly and sending me incorrect statements. I've sent numerous emails to Telkom and Julia Wulof but still not getting assistance. My subscription is R400 but they have been debiting R385 for an old line that was cancelled/closed and now all of a sudden they debited R870 from my account and I'm puzzled why. When you call customer service they can't even find my account or the money I've been paying yet I receive statements monthly. I'm fed up with Telkom Business and their disgusting services 😒