Can you explain what your issue is in a bit more detail for me?

I have a linked Google account, I wanted to change my registration email to the same one. The browser has an "autocomplete forms" function, and in the field where you need to specify a new email, [email protected] was chosen... I was sure that I had chosen the "correct" email, and confirmed the change. Now I can't physically change the email because the confirmation comes to a non-existent account...