Parcel destroyed without communication

I bought hair from Uwinshair who uses Postnet to deliver. It was three different hairpieces, the two were delivered and collected in February the other one was gonna be delivered on a later stage. Then Covid19 happened still no communication from Poatnet and I understood it’s because of Covid19. End of August I call to find out about my parcel I’m told that it was destroyed because we didn’t pick up but we literally don’t have any communication from them. They also don’t want to send prove of communication.