Unable to place an order with error "Your credit card information is not valid"
How to resolve this error when adding a phone number to your Battle.net account
How to contact the Blizzard legal department.
Regional or local taxes may apply to your digital purchases
Some free games require that you add a phone number to your Battle.net account
What to do if you don't receive texts from Blizzard
A phone number can only be linked to one free game
How residents of California can opt out from giving Blizzard permission to sell their personal data.
PayU General Information
Where to go for information about Diablo® IV.