Horrible online shopping experience

Horrible online shopping experience! Ordered on 17/12/2023. Paid via instant EFT on their website. 18/12/2023 order status says awaiting payment. Email sent to online support. They requested a POP. POP was emailed on 20/12/2023. Multiple emails and phone calls after that but up to date no movement and no response as to what is happening. All I get from the call centre is that the finance department must allocate the payment. Surely it does not take weeks to allocate a single payment that was processed on their own website.