POOR SERVICE!!!!!

This company keeps giving me the run around. I have called nonstop from the 11 of April 2023 for my Shein order that I was meant to receive. On the 3rd of May I got a message stating it was delivered and client received which is not true. The customer care lady said Fast ways had the parcel. I called them and they disagree as nothing was given to them. On Friday (5th May) Buffalo Customer care then said parcel was lost and Operations Manager marked it as delivered not sure why but that they will send me a letter stating parcel is lost so i can repurchase and pay nothing including customs as I have already done so or request a refund. Today I called and another lady said they still investigating to see where the parcel is. So, which is it, LOST or PENDING. No one has called or emailed me, and the parcel is paid for. This courier service is pathetic. Customer service is ****.