Waiting 4 months for S6 after repairs

I gave my phone in at Middelburg branch on 15/04/2015 to repair a cracked screen, it was sent to Witbank repair centre who then sent it to Johannesburg repair centre. After longer than the 21 working days lead time and lengthy conversations with head office I received my phone thinking everything was in order I closed my complaint with them. However my phone was without a sim tray and I only saw this when I got home and opened the packaging. Middelburg branch ordered one as they could not find mine. When it came after 2 weeks it was the wrong tray. They then ordered the correct tray and when it finally came my phone could not connect to the network. They then sent my phone in again to repair this.. I was told I would get a replacement S6 for the inconvenience.. when I followed up again, since no one comes into contact with me, I was told that the phone will be repaired- no replacement?. I am still waiting and this was 3 weeks ago. Every time I phone I get told my phone will be there soon, all this time I have been paying my contract with no service, unable to use my airtime and I don't have the phone I'm paying for! JOB No ***1