Lost my email

Hi all,

Can anyone help?
I can sign in with my username & password no problem.
I need to login to the Alexa skill but I’m asked for my email not my username. I’ve tried all my email addresses but cannot log in, how can I add or change email address by logging in with my username?
Any help greatly appreciated.
Thanks for caring . .

Does this have anything to do with Home Assistant?
Looking to put this in the right category.