Hello Michael,
Thank you for reaching out and I am happy to help!
Just to confirm, you are trying to manage your W3 Total Cache subscription and you want your email updated for this?
If this is the case, please confirm this, and drop us a note directly via the W3 Total Cache plugin in Performance>Support or the contact form: https://www.w3-edge.com/contact/
So we can provide access to your account as this is a public forum.
Thanks!