disconnecting calls

I have a an awful experience with cell c when i put my first claim through in September. They kept disconnecting my calls, they gave me incorrect banking details. it was ridiculous, I had to keep calling and no one ever called me back!! I have a second contract with cell c and I was ****** and I dreaded putting a claim through because of the problems i had the first time.. I called csurance today infact i am on hold with them as we speak! i've been on the line for 19m:35s and i finally got to speak to someone and he put me on hold to check my ticket number, i've again been on hold for more than 6 minutes!!! the first time i called in today my call was answered and cut immediately!!!!!!! I am paying every month so that in the event of loss or theft I wont have to suffer without a mobile device yet cell c refuse to fix this problem they have where no helps!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!