I am the person that will be helping you today.
May I ask with which system, website, or company your account is associated?
I will be standing by.
You should be able to reset the password ***** this page: https://www.fastmail.com/html/?MSignal=LostPassword-*
On the aforementioned page, enter your backup email address and it will send the reset link to your backup email.
Thank you. ***** ask how you were able to solve that?
Thank you. That simply means I am not give any credit for my time.
I wish you well.