CellC bad customer service

I have a cellphone insurance with cell c.I made a claim on the 27 of April 2018 and now is the 22 of May 2018 and they keep on telling me excuses. Every time i call they give me new stories about outstanding documents that i keep on sending. Their consultant are very rude and every time i ask for a manager they keep on saying she\he is not available. They put you on hold for 30 minutes every time.It seems like i will not get any help.