Failed to receive

I've been with old mutual 11 on their insurance.i was paying with my account money was been deducted on my standard bank account.When my mother in-law passed away I tried to claim but unfortunately nothing was given to me,then they stated my lapsed.i tried to do follow up but I never received help but instead they continued to to deduct the money even though my mother in law was no more.When I call they said my policy was updated every was fine,but I've never received any thing when I needed their help.Mandisa from old mutual was the one whom was helping me but she never got back to me no help was provided for me.May you please assist me to get my money back because I've tried on my own but I wasn't successful.its a pity when you invest on something in order to get a good outcome but you end up being disappointed by the company you trusted.please help me.