Unauthorized transactions allowed by bank. The bank refused to return my money.

An unauthorized transaction was approved on my account on the 25th of October without my knowledge and the people at Capitec said they couldn't investigate the transaction and that they wouldn't return my money. I kept calling and sending them messages and they kept telling me that the money was gone and wouldn't explain why their ***** insurance couldn't pay it back. I am leaving this bank as I have seen firsthand that they don't care about the safety of customer funds and they also dont care about providing proper feedback. All communications with them were initiated by me, nothing from their side. They allowed 3 unauthorised transactions to be conducted and still had the audacity to say that it was because I allowed people to use my card. Useless bank at this point.

The transaction happened on the 25, it was posted on the 28th yet the bank says they couldn't reverse the transaction! How?!