DISGUSTED CUSTOMER SERVICE

I' absolutely disgusted with the service I'm getting from DSTV. I pay my monthly installment 1 week advance every month and end of June I noticed my installment was charged twice. I called the customer care to report the problem and they acknowledged the mistake was on their side and will be sorted. I kept receiving warnings that my account was due and I will be disconnected but when I called again I was assured that the accounts people will rectify the error but to no avail. Now my service is disconnected and called 3 times already but noone has a clue on how to assist me since 10 days ago, I get the same answer " we have escalated the matter to accounts?"