Terrible customer service at Mango King Shaka Airport!!! No answer from call centres!!! No replies on emails !!!!

I booked 2 flights from Durban to Johannesburg for the 29th of February 2020 on Monday the 20th of January. My first issue was that the money was debited off my account and I did not receive an email confirmation, a few hours went by and still nothing, I tried calling the call centre and waited well over an hour on two calls and there was no answer, I then emailed enquiries@flymango twice with no response up until now. I then went to the Mango guest care centre at King Shaka International airport to enquire why I hadn't received the confirmation, the lady at the front desk was extremely rude saying that there’s a payment issue and I’m like everyone else who was having the issues and I must be patient, she then issued my tickets and the date on the tickets were incorrect, she yet again was extremely rude to me saying that she didn’t choose the dates and there was nothing she could do so I called for the manager (Clement Isaac) who was rude and arrogant!!! he said to me that it wasn't in his control that the dates are incorrect. I asked for the dates to be corrected and he said that I would have to pay more than what the original price of the flights costed and that "I didn't lose a lot of money" and he had a smirk on his face as if it was a joke. He said that it was my fault and that they are strictly operational at the airport and that they don’t deal with my kind of issues there, he said that I must email *** of which I did, and to date I still haven't received a response, it’s been 5 days and all I got was the automated replies from the emails I’ve sent.

Please could this be urgently sorted out as the tickets costed a lot of money and it isn’t fair that I had to pay for flights that I didn’t choose, I would like a refund or my dates changed with no additional charges as this was not my fault!