sanlam death payout refuses to pay and wishes to entertain any random people who claim

We have been waiting since last year for help from Sanlam regarding a death payout. they are entertaining anyone who wants to be a beneficiary while the family of the deceased is suffering. the aforementioned individuals have till now proven nothing but we are still waiting, like Sanlam says for them to prove they are beneficiaries. i have never seen a company be so stupid to allow random people to claim on peoples policies. they keep postponing the meeting where they discuss policies. mind you, this has been going on for 6 months now. widow and kids cannot do anything as Sanlam claims they wont pay out till they receive all information from NON FAMILY members who wish to counterclaim the family's claims. can somebody help us in this regard, is there a legal way we can deal with this. we are struggling to a point of no return. they are refusing to help us and it seems they want to entertain any random people so they dont have to pay out. help us please