Phone cut after dispute

I have had my contract with AA for 6 years and never missed a payment. Not once. More than a month ago I queried my account as more than R3300 was deducted on one bill, apparently because I subscribed to services (I did not). AA advised me that they cannot assist. After a huge argument with the responsible co they admitted that they were at fault and that they will credit the amount to my account. This did not happen as yet. <br> My debit did not go through last month as I overpaid more than R3000 over the last 3 months. I was referred to Customer Services when phoned last week and assured by Kevin that my service will not be cut. Today it was. Phoned and Jacky? advised she cannot assist and Kevin will phone when back from lunch. It is now 3 hours later. I previously explained what happened and that I need my phone for business. I pay AA more than R1000 per month. Kevin, you broke your promise. AA, you cut me off after: 1) 6 years of not missing a payment 2)you could not resolve the issue of MY money ********ly taken by you 3) assured me it will not be cut. Horrible, appalling service. I am stuck with you for another 15 months but will then spend my R1000+ p/m elsewhere.