Aramex has super bad service

A parcel was sent to me on 14th December from Cape Town. 6 days later I receive a parcel that is not mine. 2 days after that, and 2 hours of waiting on the phone to speak to someone, plus sending emails and messages via Facebook messenger, I receive another parcel that, again, is not mine. Since then I am trying to get hold of someone that can help me find my parcel. The last message I got on 24th December was, that the parcel was with risk management and they will contact me. I am still waiting. This is very, very frustrating and disappointing. Does anybody actually refund us for this or is it theft at head office?