Horrible experiance!!!

I upgraded my Cell phone Contract on 10th of August, and they told me it would be 5-7 Working days for delivery (17-21 August) . And now its 4 September already and every time I try and phone in to find out what's going on they tell me they can’t assist me or they just transfer me around to different departments that can’t help at all. So bottom line is that they won’t help me fix the issues they have caused, and cannot keep the word they have given to their clients, it’s also not my first problem with MTN. To have network with MTN = Rude consultants, Not being kept up to date with what they are doing with your contact and having your data/airtime ****** by them.