What to do if any settings you change do not save
What to do when a physical authenticator gets out of sync
Blizzard Customer Support cannot lock your account on request
Instructions on linking your MLG and Blizzard accounts
What to do if you corrected your country of residence in your account details but still you can't add your phone number to your account
Possible causes for hearing odd sounds, voices, and effects while playing
What to do if you can't open the Battle.net desktop app, and there are no error messages when you try.