Here's how to switch between Google Play accounts:
1. Open the Google Play app
2. Tap Menu. The name and email address of the account that you are currently using will be shown at the top of the screen
3. Tap the Down arrow
4. Then tap the account that you want to use. You will then be logged into a different Google Play account.
For further information, please read about switching between Google Play Accounts on the Google Help article here.
Please note - Small Giant Games does not have access to any personal information. This includes your e-mail and device settings. We cannot change an email associated with your Google Play account or your purchase credentials.