dstv account dept pathetic

we upgraded our old explora for the new one about 4 months ago at the time we got a call and were told to pay a certain amount and the old contract would be closed and the new one would be activated , only to find that the old account was never closed and we have since been billed for both accounts as such our dstv gets cut off every 2nd day and you have to call the call center to get it switched on every time you call you have to explain the whole story to the agent who switches on the dstv and assures you that the matter has been escalated and that the accounts dept will contact us to sort out the matter further and thats as far as it goes no one ever phones you back and your services end up getting cut off again and apparently there is no one else you can call to sort out the issue absolutely pathetic