Lack of compassion for the elderly

I have been assisting my elderly father to change his banking details after the passing of my mother (into who's account his monthly pension was paid.) There is just NO success in any attempts made to follow-up on the paperwork submitted. In addition, because of the lack of support from GEPF, I have been supporting him with funds monthly, to ensure that his debit orders are covered plus his monthly living expenses. Where does one turn to for assistance, because the call center phones just never gets answered!