AWAITING FOR MY REFUND !!!

I made an order with homechoice on the 27 September 2023 for the lulama comforter sets worth R4000, when I made the purchase they said the set is available in stock and that it'll be delivered with 7 to 14 days, that time passed and when I called I was told that i will receive it within a week and that its available, and will be delivered to me shortly, I called again and complained they had to come clean and say they don't have it in stock and don't know when will it be deliveredto their warehouse, I then requested a refund and was told to send proof of payment which I did send via email to ***, but when I call I'm told that they haven't received my email/POP, this is poor service because I used my homechoice account number as reference therefore you should be seeing the amount I paid in my name rather than to have me go around department by department when it was your fault this purchase wasn't a success.