Travelstart not processing a refund

Good day This message is out of frustration for not getting any feedback from Travelstart on a refund that must be processed. I contacted Travelstart re the incorrect payment and they requested the bank statement as proof, which I provided on 1 November. After I had to follow up when no response was received, I was asked for the statement again and I sent the document to the help, payments and bankpayments e-mail addresses. I followed up again and again. This situation is getting seriously uncomfortable. I do not even get a response on FB messenger. My booking was ZA***5. On the day of booking (4 October) I had to reset my bank limits for payment to be processed. The JHB -CPT flight was paid upon booking, but the CPT-JHB flight was pending. Travelstart sent two links to process the payment, but I was not at my computer and the links expired. To avoid losing the FlySafair return flight, I accessed their app to make the payment. Travelstart then also took a payment (R2930) for the return flight plus a fee (R154) after I made a payment to FlySafair. I contacted FlySafair and they confirmed that they received payment for both the departure and return flight. Proof of my conversation with FlySafair was sent to Travelstart. I was thus double charged for the return flight and I cannot get the refund and fee processed – complete silence from Travelstart. In the meantime, the bank is charging me additional fees. I am leaving no stone unturned until I receive the refund (flight and fee).