Senior citizen abuse at FNB

My 85 year old grandmother has had a dark Christmas because of FNB. She has no access to funds in her bank account. Her bank card was torn up in front of her at the Davenport branch as she was told her account is involved in ********** activity. This is an 85 year old lady who lives far from her relatives. It's new year's eve. She will again have no food on the table as she cannot access any monies in her account. She was told she'll only be called once the department dealing with ***** has completed their investigation. she is expected to wait indefinitely without any money. This is abuse of a senior citizen. This is the 10th day she's had no access to money in her account. No food for Christmas, no food on New year's Eve.