BUFFALO LOGISTICS DID NOT DELIVER MY ORDER BUT INSISTS THAT IT WAS RECEIVED & FAILS TO PROVIDE PROOF OF DELIVERY

I DID NOT RECEIVE MY SHEIN PARCEL YET I'M TOLD IT WAS DELIVERED BUT I DID NOT RECEIVE OF SIGN FOR THE PACKADGE. 3 WEEKS LATER I'M FOLLOWING UP WITH THEM AND THEY SAY IT WAS SIGNED FOR BUT NOT PROVIDING PROOF OF WHO SIGNED FOR MY PARCEL. I'M SO FRUSTRATED, IT WAS MY FIRST TIM ORDERING FROM SHEIN AND DEFINITELY MY LAST BECAUSE OF BUFFALO LOGISTICS. THEY SO UNPROFESSIONAL EVEN THE CALL CENTRE.