Duplicate transactions

Two days ago I paid one of my accounts using my debit card. Yesterday the transaction was duplicated and the amount was debited from my account again. I then received an SMS from Capitec informing me that they have been alerted to the duplication and that it would be reversed. Instead the transaction was again duplicated and debited. I contacted the call centre only to be told by an indignant operator that many clients are experiencing duplicate transactions and that I must wait until an internal IT investigation is completed before the issue is resolved. I was made to feel at fault when it was my bank that allowed money to removed from my account not once but twice and worse still, told that this was a regular occurrence.