BUFFALO FAILING TO DELIVER A CUSTOMER'S PARCEL AND FALSELY CHANGING THE STATUS TO "DELIVERED & SIGNED" KNOWING THAT THE PARCEL WAS NEVER DELIVERED

I ordered a pair of glasses from Lensmart and Buffalo International Logistics took over the courier service. The tracking number shows the parcel was delivered on a Sunday and after 7 pm. This is a summary of how the status changed: On the 21st of December 2024, the status was "courier began", 28th of December - "ZA Warehouse received", 2nd of January 2025 - "Despatching, please keep phone open" and on the 5th of January 2025 (19h53)- "Delivered and received". I have tried WhatsApp text, Customer care service call and email, to no avail. The Customer care agent mentioned she'll escalate my enquiry to the relevant department to track the driver, delivery location and the person by whom the parcel was signed, however no further communication occurred. How can I further inquire about this burning matter to the relevant personnel for assistance? BUFFALO OFFERS THE MOST HORRIBLE COURIER SERVICE I'VE EVER EXPERIENCED!!!