A month later Refund still unpaid!!

I am battling to get a refund from Travelstart. I paid R45548.00 for group tickets to Vic Falls on the 6th of March 2022. They indicated the following day that price went up before they allocated the funds. I then booked a new cheaper route and they transferred some of the funds to the new tickets. There was a balance of R17319 from the originally paid amount of R45548. It is close to 4 weeks. If you call you hold for 59mins, they are providing timelines or even responding to emails.

Another failed promise. A month later I am still following up for my refund. Have raised a complaint for them with Department of Tourism. Here is another one of their promise not honoured below.

"Hi Dr.Mavis, Thank you for reaching out to us. I have located the booking via your hello peter query I have checked the booking and can advise the refund will reflect in the next 24 -48 hours". ~Melissa

And this was 3 days ago!!!