Telkom frustration

I am honestly frustrated to say the least with Telkom. I have noted to them via email, calls, Facebook and still they just doing nonsense. Suddenly debit order dates changed, fine I continued paying on my own, next thing they deducted after I had paid few days before, then I left it and they deducted on wrong date again. Fine I left it, thinking they'll deduct I left it till month end, no deduction, next thing they send an email with 2months deduction and an extra charge of R13. 75. Is this honestly fair? I had been with Mtn years back and never experienced such, now I see why people would reverse debit orders for Telkom. They have the dumbest system let alone network