DREADFULL CUSTOMER SERVICE / TERRIBLE NETWORK

jan 2015 I ported my old mtn business # to cellc and took a 2nd contract for my wife, we could immediately see the difference in service because it was an overnight change from mtn to cellc. I calld instore and askd for help, consultants where shown the poor network and they tried changing settings to help, with no change.. I was then asked to use for a few more days and check the difference.. has been no better since then.Game stores in Sanlam centre booked fones in as open box failures immediately and instructed cellc to investigate and take further.I am unable to get all calls made to me , the callers are faced with \the subscriber is not available".. this is when my fone is on... messaging and email services are even worse when I will get the messages when the conversation is no longer even relevant.. I have made plenty of calls and emails to cust services"