Taking advantage of a volunerable individual (elder)

My father's name is Taylor Mxolisi Kufa he was called by a consultant from this company saying that he works hand in hand with FNB my father's bank to help him with his debt mind you my father has never missed a payment and does not need this yet of assistance but because he was told that the bank new about this he thought the bank was the one which recommended this. Upon going to the bank he was told the was no such recommendation from the bank he immediately contacted the lady that was him with no avail. He is so frustrated helpingcoz he was given false information and his interest and wellbeing not prioritized.