Double charged

I made an order for Double Up Burgers × 2 and 1 buddy coke + 1 buddy Fanta on 17/03/2024. Order total was R153.60. The order was processed twice because they said the initial payment was declined, when I check my banking app there was two different payments taken off for the same order, which means I paid twice for the same order. I called my bank to confirm and then advised the cashier (Zandile) that the amount was taken twice of off my account she was admin that the first one declined. She then requested for a manager who is Ayanda to assist.

I explained to the manager the same situation and even showed her my banking app payments and also my phone notifications that the amount was taken off twice. The manager stated she will get back to me and took my email and contact number however she did not get back to me so I called her on the 20 of March to state that I'm still waiting for feedback she said that she had forwarded the issue to a higher team and that she had lost my email so she requested for it again which I did send it to her via text message. I had heard nothing from her until I decided to call again on the 26 of March which she had promised my refund would be processed within 5 business days which was meant to reflect on my account by Friday 22nd of March, she said that she is going to follow up with the back team. I still haven't heard anything until today, not only that I'm not happy that I was charged twice. I'm also unhappy about the terrible customer services that's being provided to me after I was sure and told them the same day that I was charged twice for the same order. I've logged 3 different complaints, was assured by 3 different stuff members saying I would get my refund back but it's now 29 days later and I still haven't received my refund!!! And I'm not supprised to find out they have such a bad reputation here on hello Peter