complaint for poor and bad costomer service

My name is andile moloto on around octomber 2017 i went to a cell c branch at westgate mall, i den took a contract with them for an iphone 5s including insurrence so in total i was paying 420.In april of 2017 my phone scren broke i de decided to go and claimed de insurrence to fix my phone so i filled in claim forms den i was told to wait for the respond for which i was i did not get untill i went there myself to check if there is any progress unfortunately i was told stories that ddnt even make sence and that was around september.i den went back to the brach again in westgate i was told to refill the claim forms and apparently they were never send even the first time but it ddnt help becouse still i was sent from pillar to post for a phone that i was paying for .i den decided to stop paying becouse one of the consultents told me to go myself to cell c offices to claim it myself,so now i was supposed to do thier jobs for them for a product that im paying for dts bull