Poor service delivery

I ordered a TV online on 29 November 2025. Order numbers ***, ***. Received an sms saying delivery would take place on the 1st December 2025. Received a call 3 Dec from your courier saying that he can't deliver to the address given during business hours and requested for me to change my delivery address, which i refused because the delivery could be done as late as 8pm. I called him 4 Dec and he said he returned it to the warehouse. We have now gone past the 2 - 5 business day delivery period. What happens now? Made 3 or 4 attempts on the whatsapp customer service line to get assistance, with no call back or interest. I am appalled by the service I have received.