Sasfin ********** debit order

I had an amount of R338 debited from my account on 2nd December 2019. The reference said SASFINHRS and a string of numbers. I called Sasfin the same day to be told they were offline and could not assist me. I called a day later and the switchboard operator put me through to an extension where no-one answered and I was asked to leave a message. I left a message for someone to call me. I waited another day for someone to get back to me. Finally on the 6th December I got through to Mulalo Mathobo at Sasfin. She asked me for my surname and nothing could be picked up on their side as I have no dealings with Sasfin. Then I provided her with the reference number for the debit. She said this number did not match their reference numbers. Clearly this was a ********** debit order. I sent her an email with all the relevant debit order details and received an undeliverable report. However I contacted my bank and reported this ********** debit order and haf the debit order reversed. Please be wary and check your bank account regularly for unauthorised debit orders.