Unreliable with Aramex South Africa

I would like to express my greatest dissatisfaction with Aramex South Africa. I courier something on Monday The 26/11/2018 from Kimberley to Katlehong Gauteng. I tracked it on Tuesday and I was informed it has been been delivered to the Johannesburg Aramex and will be delivered to the address the next day, when I called the next day they informed that it has been handed to a third party that they use for deliveries and should reach the address before the close of business that day and should it not be delivered I should contact them the following day. I contacted them on Thursday but they told me that they can't track the parcel with the same tracking number i have been using and from there i have been taken from pillar to post. the consultants in JHB are giving attitude and not helping at all they keep saying they will get back to me but they don't. It has been five days and my parcel has still not reached its destination and I can't even track it now. Kindly assist