In order to help you, we need the exact email you used to make your signature or its GPA number.
If you do not remember, you can find all the Gmail email you've used on your device. Do the following:
Open your device's Settings> Accounts> Google.
And in the Google Play Store, go to Menu> Account> Signatures> PlayKids.
If you have a problem with your subscription, please send us all the emails that appear in these locations so we can understand the status of your PlayKids Account.
Have lots of fun with your family and PlayKids!