C-Surance - Your Worst Customer Service nightmare!

I am absolutely appalled with the service received from Cell C and C-Surance. My boyfriend took out a contract out on an LG G6 for me and the screen cracked a month or so afterwards. We booked it in TWICE late last year and each time I got a call to come collect the phone as it has been fixed and TWICE the screen came back unfixed. Then they told us that the phone had not been booked in properly. HOW!!? We especially went into the Cell C store in Newtown Junction Mall, where the contract was taken out to book the phone in. Amidst all this, my phone was lost and I put in a claim for a new on on the 27/03/2018 and until now no response. When I called this afternoon I was told that they have been waiting on Hollard to approve the claim as the usage and the phone details do not add up. DUH! I have not been able to use the phone prior to it being lost as they kept returning the phone back to me with the screen still cracked!! Then they want to tell me that customers do not read the T&Cs and this is why they end up with a problem like what the hell!!? Every month they debit this money but I have not been able to use this phone in MONTHS! Then I demand to speak to the manager and the call centre agent, whose name is Tshiamo puts me on hold forever and then drops the phone in my ear. I am fuming! I am actually just thinking of telling my boyfriend to cancel the contract altogether as this is utter and absolute nonsense!