Poor Service From Fastway Couriers

I am waiting four days for my parcel even though it has been delivered to the Cape Town Depot four days ago as per the online parcel tracking. Phoned the depot after three days due to my parcel not being delivered. They promised to find out why it was not delivered since it has been at the depot for three days already and keep me updated. They never returned my call. I called the next day and wanted a response from customer services they gave me the run around and eventually cut me off. I then tried calling again but the receptionist never even answered the call knowing it was me. I logged a trace for my parcel on there website and complained about the poor service I received and received an automated response stating they will locate my parcel and give feedback. I am still waiting for the feedback and for my parcel.