What did you do for shared accounts?
STBEX is asking for credentials for all marital accounts - she wants access to "all marital accounts."
What's been working for you?
What went horribly wrong?
If there's an account where it makes sense for her to have some access (insurance covering the kids), how have you handled that?
I'm definitely not going to:
a) put username/password in plain text
b) give her access if the website clearly says each person should create their own account.
I'm thinking just print off the documents and tell her she has to call them, so the agent can explain whether she gets to know stuff or not.