If you're having difficulty signing in, there are a few things you can do.
If you've forgot your e-mail address
Try searching your e-mail inbox for an e-mail with the subject Verify your Homey account and check the recipient.
If you've forgot your password
You can reset your password by visiting accounts.athom.com.
If you've lost your 2FA device
You can reset your 2FA device by visiting I lost my two-factor authentication (2FA) device.