No problem! You can recover it yourself in a simple way!
In the login page you'll find the "forgotten password?" button. You can find this button both in the mobile app (tap on Login), and on the web version https://www.sellf.io/
Click on the button and then check your email. You'll receive an email with all the instructions to set a new password.
Do you still have problems? Do you forgot the email used for Sellf's account? Write us at firstname.lastname@example.org and we'll help you to find it!