[naetd]

This doesn't happen to most people so you have a clear personal identity problem. Maybe your name is on a list (when I worked at a brokerage, we had to do identity screens and close accounts if someone was on some sort of international security list... I wasn't a member of compliance so I don't know the full details). Possibly your identity has been stolen and is being misused. Or maybe it is just one specific rogue email account that you are using that is causing you problems. I would recommend reaching out to customer service at some of these companies, possibly Fidelity first as they are a financial institution with strict requirements and might be able to tell you most directly what your problem is. You should probably also make an attempt to check / lock down your credit and any other important accounts you have.