In case you've forgotten your password, use password reset. In case you've forgotten your email or username, visit password reset and try all possible email addresses you have. You will be notified that a password reset email has been sent at the correct email.
How to change Spotify password:
1) Visit Spotify password change page.
2) In current password slot, type your present password.
3) In New password, type in the chosen changed password.
4) In Repeat new password, type the new password again for surety.
5) Click on "set new password".
To reset your Spotify password:
1) Sign out of the Spotify application and site and go to reset password page.
2) In Email address or username enter in either of the two and click on "Send".
3) You will have received an email with “Reset your password” subject.
4) Click on the given link inside the email.
5) In New password, type your new password.
6) Type your new password again in Repeat new password.
7) Click on “SET PASSWORD.”
In case you haven’t received the password reset email:
1) Check spam or junk.
2) Ensure you have typed in the correct email or username.
In case the reset link didn’t work:
1) Request a new link and try that one.
2) Try opening it in a new web browser or private mode.