You can contact help@playphone.com - (if you did not setup a password)-
Check sms -
via sms msg - go to i aready have an account to enter user name
Playkids! Use xxx-xxxx@playphone.us username to login. Visit https://playkids.com/playphone to login and start playing.
You can goto recovery link
https://playkids.com/playphone
https://lootgames.co/l/sprint/playkids/pages/recovery.html
or try restarting and following the steps. (restart app)
if you did not see the above image ( try clearing storage cache/memory and restarting )
open app, click login button, enter email
you might also try below on some phones - click i have an account
then click on playphone button to login
enter the sign up email