Unhelpfull, rude

I had sent my parcel via Aramax to them with an extra bag. They called saying its ready Aramax must collect i said cant you drop of at the the Aramax box they said no. All these answers where shouted out at me i said ok no problem I will make some arrangement. I called a friend in Pretoria who said he will go and collect it from the embassy and drop it at Arramax drop box for me So I called the Embassy to tell them is it ok if this person collects it for me. They screamed shouted and refused to talk to me. Why are these ladies so rude?