Unclaimed benefits

My father passed on 2014 and my siblings and my mother managed to get their claims paid, however when I claim the benefits due to me no one is taking any action or even responding to my emails. The payment has been done to fairheads but its seems like a problem for them to finalize my request. My name is Joseph (Aupa) Konote ID number *** and my late father is Botha Johannes Konote ***.