refund not received

we cancelled our subscription due to being over billed as we requested that our subscription be cancelled for 1 month and then reactivated after our fasting month but then we had to pay for 2 months and then a few days later requested to pay again for the new month. we were then in credit and were supposed to be refunded. the lady requested banking details and said within a month we would be refunded, a month went by and when i called in they still have not looked at our email with the banking details. they then took down banking details verbally and said within 7 days we should be refunded, 7 days passed and still no refund. i called again and was told the deposit was unsuccessful as the banking details was not verified, but nobody at multichoice contacted us to say that it was unsuccessful until i called them back and redone everything. if payment is late then our subscription gets cut, but when multichoice has to pay then we wait a lifetime, that is in no way customer service. that's why i feel the same series on DSTV premium we get on another service provider for a fraction of the price with better customer service.