Unacceptable debit

This issue was raised on the 7th of February 2018. Till today we have not received any refund on the amount that was taken off incorrectly. What is going on??? Vodacom took the money but we have to wait until they decide when they will pay back the money. If they don't get their money they suspend your service till funds are received and list that on your ITC but when they take money you have to wait till they want to pay back. Today the 7th of March 2018 there was no debit made on the account. WE REQUESTED A REFUND NOT FOR THE AMOUNT TO STAY THERE FOR THIS MONTHS PAYMENT!!! With the amount that was taken and this month's payment there are still credit left. Will they take that now for the next months payment or will they do their work and REFUND the money????