My bank statements shared by bank official to my wife (third party) without my consent

My Bank statements shared by bank official to my wife (third party) without my consent and bank had give me in written that "Bank completed the investigation based on ur complaint. The statements were shared to my spouse. And the official who did this act was not associated with bank so we can't do anything and the case details shared with internal ombudsman team and according to ombudsman the reply in in order with no further action required." Please help me how can i proceed to complaint or file legal case regarding that bank official who did this heinous act? Please help. Under which section case can be filled according to this scenario and is there any other institution where we can complaint so that the person who did this act can not do in future and this will become an example for everyone. As anyone's bank statement is very private document specially if its salary account. jst fyi : Matrimony cases are going on in b/w me and my wife from last 5+ years. Thanks Navi