Failing to process a simple refund

I placed an order from LADY TEE HAIR NETWORK ,through pay just now with the reference: PdRogMLReG , this was on Monday 3rd Feb, at 09.29 it was said the order would tale 1 to 3 days for delivery. I did not receive any confirmation communication for order tracking and updates. I have been trying to contact them telephonically and through WhatsApp, however, there was no response nor delivery. raised the matter with PayJustNow and they demanded that I forward them proof of communication with the merchant, I did and they did nothing about it. Couple of weeks after 05th of march 2025 ,the merchant then came back to say that they could not fulfil my order and have requested that PJN process a full refund for the unsuccessful purchase of a total of R1 320. I forwarded the same communication same day to PJN to confirm and process the refund. It's almost 3 weeks now and I still haven't received any feedback nor response to any of my emails or phone calls yet they still debited my account on the exact purchase. Please refund my money into my account