********** account and no assistance

I am so ****ed off with fnb ,my dad has an account with you and we keep on complaining regarding a person who keeps on changing things and de*****ing my dad account you showed my brother a footage it was my own sister we advised that under no circumstances can she do anything or change anything we then placed my brother number so that he can monitor the account but still my sister came and changed his number and placed her number and put a sum of 70 grand into an investment account,my brother went with my dad to the bank and his number was placed back cause he is the one that monitors his online and SMS notification..we need to know why that 70 grand can't be moved you said someone gave authorization not to move who is it ???and wen an elderly person come with a person don't you request an id ????only my brother can be able to come there and change things ,,but know the same ******** is being allowed to change my dad things even when she was reported,fnb you need to protect elderly people but you are failing us and we requested for cash sent from the shops to be blocked but no cash back is still being done ,Fnb if this is not resolved and my brother and I still have to come back and forth with you I am afraid you leave us no option but to move his account to another place where they won't allow ********* to come and change things my dad suffers from Memory loss when he remembers we have to run around for what while we have a bank that can help ???you have failed a 74 year old man and us ,maybe you enjoy me and my brother running after you but it ends today if you don't unfreeze that money so that it can be moved to the safe place then you leave us with no choice, a bank that can't even screen the other person changing things 😡