How to Update ALL email addressess?

Hello,

I have three WordPress accounts.
Hosted by WordPress.

Main:
rodgersnotes.wordpress.com

rodgerswriting.wordpress.com
rodgersreading.wordpress.com

The last two, I’ve hardly ever used.

When I created them, they all used different email addresses, from different domains.

I thought I would “just” update all three blogs to the main email address.

I was able to change the email in rodgerswriting:
Settings, General

Got a confirmation email. Worked. Good.
Double checking, the email has been changed.

—

However, believe it or not, there is actually another email address in:
Users, Personal Settings

When I try to update in that area, I keep getting a nasty message:
ERROR: That e-mail address is already being used.

What is the secret to getting all the email addresses, on all the blogs, to be the same?

—

But wait, it gets even worse.

Just in case, I logged out, and then tried logging into rodgersnotes.

And then went to support.
But it suddenly said that my password was wrong.
Did a password reset.

But, it turns out that support forums use a different username and password.
Honestly guys!
How can you possibly make things soooooo complex?

—

Thanks a lot!

Rodger