Information on removing parental controls.
How to set up parental controls.
What to do if you have parental controls on your account but can't remember having added them.
Information on controlling purchases in Blizzard games.
What to do if you forgot your Parental Control email address
How to retrieve a new copy of the Parental Controls email
Information on error BLZ51900011
Blizzard accounts registered to the name of a minor are required to have Parental Controls
You cannot log in at this time because your account has parental control restrictions in place.
How to resolve this error when buying something in the Blizzard Shop