First flipper first, double check that you're using your Disney account username and not your penguin name. You can check this article for help: What's the difference between my penguin name and username?
If you still can't login to your account:
Choose either username or password on the line that says "Forgot username of Password" CPI screenshot of Forgot Password/Username options
Enter your account's parent email address and tap "Continue". An email will be sent to that address.CPI screenshot of forgot username screen
If you don't see an email from Disney Account Member Services after 15 minutes, it might have ended up in your parent's junk/spam mail folder. Remind them to check there too!
- In the email, tap on Recover Disney Account to open the account manager. A window will open with a list of your Disney Account usernames.
- Click on the down arrow next to an account if you want to change the username or password
- Enter a new username or password
- Log into Club Penguin Island with the username and password you've created.