Unable to schange WP Contact Info email

Im running wordpress fully updated.

I’ve checked spam and deleted.

I’ve cleared caches on my browser.

Checked with the guys from godday email, they sau everything is in order (even with my dns).

I’m at the end point, where i dont know what to do anymore. Any ideas or ways to go into backoffice and change the email like you can change the username that “cannot be changed” but somehow you go into myphpadmin and just change?