Not much you can do but continue to send GW letters. I would send the next right to the office of the CEO and plead your case and mention the notifications that you never got.
Google is your friend. Often I find it easier to even search prior posts on myFICO using google and just adding "myFICO" at the end of everything.
I used google to find the addresses to 2 seperate places regarding email addresses or physical addresses in reference to old charge offs or delinquent stuff.
I have one of their cards, their interface is the worst I have ever seen.
Where can you typically find the address for the office of the CEO - calling? I did a little more digging on alerts and notifications and it appears that a user can be signed up for paperless in the “notifications” section of the app/website, but you have to go into “alerts” to set these up, which is a separate section. It was explained to me that these are automatically turned off when you sign up for paperless, which is not the norm and even more confusing.