can I get this women fired for this?

[Jon]

Yes you can. If you write to the bank, the owner (if he's strict) will probably fire her, or maybe suspend her. It is not right for her to be nosing into other people businesses/privacy.
The parents have right to give their son that much money, and have right also to sue the woman, literally.
So yeah, mail the bank. At least she will learn from her mistake. Who cares if the parents are damn rich?
But if she is naming names you should call the police. She has absolutely no right to do that