“Successfully delivered” parcel not received

I am extremely upset with Buffalo International Logistics and their services! I ordered from SHEIN and was supposed to receive my parcel yesterday 30/09/25. The parcel did not arrive, yet I received an email from SHEIN and Buffalo that my parcel was “successfully delivered”. Firstly the delivery time that was stated is 22:13 at night. Secondly, why did I not receive a call from the driver. Thirdly, there is picture of proof of delivery with a signature that I cannot recognize. I have been calling Buffalo from 07:00 this morning (using my airtime), I have talked to three agents and the last one told me the matter will be escalated. SHEIN should look for another courier company as this one is clearly ***********. Their bad reviews exceed their good reviews by far. They do not even reply to the reviews. I want my parcel or a full refund!!!