It says "This email is already used by another account". What now?

That address already belongs to a different Playbox account, so it cannot be added to this one, and Playbox never merges the two accounts on its own. Usually it means you once signed up with that email separately and later started playing through Telegram.

You have three ways forward:

• Enter a different email that belongs only to you.

• Tap “Contact support” under the field. It opens Playbox support in Telegram (@playbox_support). Send the email and your Telegram username, and we will help you end up with one account.

• If the other account is yours, join them yourself: sign in to it with that email, open Settings → Connected Apps → Connect Telegram and confirm in the bot. This works unless both accounts already have games, then support merges them by hand.

The same message can appear on the code screen if someone else took the address while you were confirming it. The code then stops working and you pick an address again.