Faulty Phone( No Signal)

I'm really dissapointed in the Cell C service. I bought a Samsung S4 5 Months ago, my phone is in very good condition still. No Cracks, the plastic protective cover on the screen is still on.<br> <br> That out of the way, 2 Months ago i sent my phone in for repairs as it was picking up no signal at all. 30 Days later the phone returns and works for another few weeks. The phone hasn't been working for 2 weeks now, no signal. Which means i cant use the data and most importantly make or receive calls. This is annoying and totally unprofessional from a service provider. <br> <br> I don't think its worth my time and money to stay with this network. I hope to hear from one of the main manager's quite soon as to how they are going to fix this problem.<br> <br> Kyle Prince