Telkom 8ta bad service&incorrect billing

Bad service from day one with telkom mobile 8ta, i've been with these ****s for over 4years and it keeps getting worse and worse. Debit orders for the past 6months have not been going off, and you are told to make manual payments and send proof, i mean that's time and money that telkom is not paying me back for. Until today this matter is still unresolved and no direction to where the matter or case is going. Our lines are then suspended due to non-payment/debit orders not going through. What a useless network provider!!