DSTV will not pay customers their credit and Shocking Customer Service

Completed change of ownership and new banking details form as per dstv requirements. What should be a simple administrative procedure ended up in a Nightmare Customer Service experience! The debit order is due 1st of the month but they suspended our service on 30th (2 days before debit order due) insisting we owe them money?! Still not connected! More than 10 calls made to dstv in one day, over 5 hours spent on the phone, NOT ONE agent able to reconnect the service or grasp this is a dstv error! Best of all - at least 4 agents advised their supervisor or manager will call me back. NOT ONE MANAGER at Dstv bothered to call. At least 3 agents just dropped the call as they had no clue what to do. Furthermore, our account is Actually In Credit and Dstv are not paying that out to us. Unbelievable - account in credit and dstv cut our service insisting we owe them money! Best agent response - send us proof of payment for Jan and Feb??!! They have a system in front of them showing we pay by debit order - if we had not paid in Jan and Feb would we have had viewing in March?!?