Online order did not arrive and I get no response

I placed an online order for my daughter's laptop backpack at Cellini luggage .co.za. The payment of R899 was made on 04/01/26 through Payflex. Now I cannot login to Payflex to see proof of payment. The payment was deducted from my account. I emailed Cellini with no response. I also went to the bank to get proof of payment to follow up, but because it was made through Payflex they cannot give me one. I received no confirmation of my order at all.