Cell-c sucks

<p style="color: #555555;">Cell-c has been treating me unfairly.</p> <p style="color: #555555;">I have recently changed my contract to prepaid after the 24 month term and they decided it would be a great idea that I shouldn't have any signal - while I was on contract I ALWAYS had signal, now that I am on prepaid I have signal and randomly (without moving from my spot) there is no signal at all until I res**** my phone. This happens every 30min and they cannot give me an answer as to why........ It is not my phone as it works fine with a sim from other service providers</p>