DawnWing unable to deliver jus like the SA Postoffice

On the 13/09/23 I ordered some goods from Crocs SA......my parcel was suppose 2 b delivered by Dawn Wing on the 15/09/23(this day had 2 make special arrangements for some one 2 b home to collect the parcel nothing was delivered) .....todate I still have not received my parcel, I've sent emails, contacted there call center no reply.....this is totally unacceptable