If you are unable to login, you may have the incorrect username or password. If you remember your username, you can reset your password by visiting the reset password form (https://www.ponder.co/accounts/password/reset/) and entering the email address you used to create your account.
If you are still unable to login, it may be because you are using the incorrect username. The password reset mail contains your username, so check it to make sure you are remembering correctly.
It's not currently possible to edit/change your username yourself, you need to ask our support team to change it for you.