SO SICK OF BEGGING FOR AN UPGRADE

I HAVE NOW WASTED MORE TIME ARGUEING AND TRYING TO UPGRADE KNOWING IT WAS CELL C'S FAULT I HAVE COMPLAINT YET BEFORE FOR MY UPGRADE BEING FAULTY AND NOT GETTING SERVICE OR FEEDBACK SINCE THEN THIS CONTRACTS HAS ALL BEEN INFLUENCED, we have been struggling since January to get that phone again after waiting 2months for cell c repairs to tell us they cant fix the phone I have been without a phone ever since been to the stores 20times and more called in then they said my credit score expired then they must ask head office then one line is paid late today now they still decline but yet every month they receive money even though I struggle to get an upgrade and now my second contract is also due and yet the struggle continues...they tried making up by saying they wont charge us one month for the contract that only has problems yet I've been paying each month ..and now I went off at the guy at the call centre telling him cell c has only delivered bad service to me the last 6months and its on going I refuse to carry on like this its unacceptable we cant keep on struggling like this just for upgrades.. I TRULY HOPE YOU GUYS WILL SORT THIS OUT THIS TIME I MEAN ITS BEEN GOING ON TOOO LONG