Some games require that you add a phone number to your Battle.net account

What to do if the website returns "Connection Error" when adding a phone number

What to do if you're unable to complete the quest In The Flesh in Maldraxxus.

What to do if you can't add a socket to items in Season 1 of TWW

Player wishes to gift their account to a friend or relative.

Troubleshooting reports about spam friend requests

Before you can connect to the game servers, you must add a phone number to this account.

Customer Support does not review a player's case on the behalf of another person

How to adjust your visibility settings in the Battle.net Shop Wish List

What to do when you are not able to see your friend's game in Diablo II: Resurrected to play together