Account debited incorrectly

Good day, I am in the entertainment business and due to the current situation that our country is in,I have been struggling financially. I reversed a debit order for R904.00 0n the 23rd of March which went through on the 22nd for Dstv.To my surprise the Credit department also returned the same debit order that I reversed on the 24th.Firstly this is showing the incompetency of the staff who controls a customers account.Absa has now created a double debit at Dstv which I have had my account for 35 years and never once skipped a payment.I am now in arrears at Dstv and I paid them via my sons credit card.Absa has now receivedca total credit of R1800.00 for a R904.00 debit.I would like this to be credited to Dstv asap as they will disconnect my my service.If this is not resolved asap I will refer the matter to the Ombudsman.