Can you please get your billing right!

Vodacom, I am sooo tired of having to call you every month to reverse the handset instalment you keep charging for a phone that is long ago paid up. If your billing system is flawed then please ditch it. If I have to call you to request this reversal again then I am going to cancel my debit order and rather do an Eft every month because clearly you cannot be trusted. Another thing is that your call centre staff lack customer service s****s and knowledge on who does what. So in stead of wasting my time calling you about 5 times to sort this out before the debit order date, I am hoping you respond quicker to hello peter complaints. Yours sincerely, another angry vodacom customer.