Old mutual claim

Hi my name is Mrs Iqbal, I have been struggling with Old mutual insurance for the past 3years regarding my husband's claim. The payout is dragging because I did not state that he had high blood pressure but Old mutual on their side did a blood test and high blood was detected and because of the results my premiums were incresed. And now they don't want to payout my claim, I have been to the Ombudsman but was advised to contact Old mutual. Can someone please assist me as I feel that I was ****med out of my money paying premiums for such a long time. The agent's from old mutual have disappeared and I have no contact or any assistance.