no phone swop in 7 days, waiting for weeks now

Recently upgraded my contract to a Samsung S6 edge. this was done on 1 June. after 7 days, struggling with the phone freezing, and having NO network, I returned the phone. Vodacom DID NOT exchange the phone with a new one, as they should have. <br> Instead, they sent the phone away for repairs. Phone came back. It was tested IN STORE, and was still broken.<br> Phone was sent in for repairs a second and a 3rd time, each time coming back, still broken.<br> <br> It is almost 6 weeks now, that im paying for a broken device! I do not understand why the phone was not exchanged. Instead, Im paying for something I cannot use.<br> <br> Worst after service ever! Looks like vodacom is NOT the network to be with after all