Mango airlines please consider the man on the street

I purchased a ticket online and paid by debit card. I did not receive confirmation booking. It was a Saturday 15th September 2018. I tried calling customer service was told they not available weekends. Monday I called waited 30 minutes on call till airtime depleted. Called back later the call was not answered waited 30 minutes. I e mailed ********** which I got from previous encounter. I received a reply stating they have know knowledge of the transaction. I went to the bank which cost me R90 by uber. The bank printed me the outstanding debit order list allocating the reference number. I emailed ********** again. He then advises transaction was reversed the same evening, explaining to him the bank advise that mango call fnb debit authorisation to reverse the transaction. He then emailed that the refunds department contacted him and he has given them my details they will contact me.that was on the 18th September it's now the 10th October and no one has contacted me. I have emailed him he refuses to respond. I had to re book a ticket on my mum's credit card. Which will now be charged interest so what should have cost me R730. 64 is now costing me R1500. And till today 10th October have not received my refund nor do I have any responses from mango