OLD MUTUAL IS REFUSING TO PAYOUT THE FUNERAL CLAIM BECAUSE OF THE UK OWN BENEFICIARY

I am very disappointed on old mutual funeral insurance, my son has passed away on the 30th of May, I went to the branch for claim and they topd me there is a beneficiary calls Sipho Cibane, I told them that we don't have any Sipho Cibane in the family, we don't know this beneficiary, according to my knowledge they are suppose to do an internal invistigation on the broker that was helping my son to join the policy but no, they ask for an affidavit, we submitted, they ask for the letter of authority, we submitted but now they are saying we sholu go to home affairs to locate this Sipho person, to me this is an excuse not to pay out this policy why they don't deal with the broker who was assisting my son, at the end of the day my son was paying for this policy through Persal we need for the money to be paid out, the Management should come up with the solution cos my family will not go to home affairs to look for the person we don't know and not tge member of our family.