Can we apply for a survival member certificate without uncooperative siblings?

I am seeking guidance regarding the application for a "Survival Member Certificate" for a family consisting of nine adult children and their father, following the mother’s passing without a will (intestate). The children have obtained a death certificate and are now preparing to apply for the survival member certificate for all surviving family members. However, two of the nine children are unwilling to provide their affidavits or identification cards for the application due to personal reasons. The remaining three children and their father, who live together in the family home left by the deceased mother, prefer not to associate with the two siblings, who have displayed disruptive behaviour, including drinking and verbally abusing the sisters and their elderly father. Given this situation, I would like to know if the other family members can proceed with the application for the survival member certificate in two scenarios: first, without mentioning the names of the two uncooperative children, and second, by including their names but without their affidavits or identification cards.