lack of communication and bad service delivery

Booked in my phone for repairs on the 9th of dec 2015 and recieved communication till the 30th of dec 2015 and nothing was said to me since then. I then calles their call cerntre on the 11th of jan 2016 and i was told my phone had been credited and i should go back to the store i bought the phone at and get a replacement,which i did and they sent me back to the store i booked it in for repairs at and the consultant could not even explain to me properly why i could not get my phone back even though they had given me what they call the obf number. I am very unhappy with the service im getting from cell c more so cos i have two cellphone contracts with them but if this is how they treat their customers tgen i see no reason to renew any of my cotracts when they elapse. I feel im being given the run around as someone somewhere along the way has not done their job properly. I cannot wait a month just to get a phone repaired and then be told that its still not ready. There was no need for me to end up contacting them had they held their end of the deal and kept giving me updates on the device. I am very unhappy and upset as i still dont hae my phone and its going over to a second month.