FNB Shares client's financial information with other non FNB clients daily

I'm not an FNB customer, but for months FNB have been sending two of their customers bank import files to my email account on a daily basis, which I can open and view. I did the decent thing and called FNB, spend an hour of my time and money on the phone just to be put through to 3 different *********** people telling me they cannot change it. I feel sorry for FNB Clients as your personal financial information is shared to other people.