- I cannot play the game for free, when I add the mobile phone I receive an error
- I cannot add my phone number to this account, I already added it to another account
- Error: The phone number for this account is already being used by another account. Please visit the Battle.net Account Settings page to add a new phone number
You will receive this error if your phone number was already linked to a previous free game account or new paid game account that requires SMS to play. A phone number can only be linked to one free game.
If you want to play for free, you must add a different, unused phone number in your Account Settings.