Unable to place an order with error "Your credit card information is not valid"
How to resolve the error "The phone number is invalid" or "Please enter a post-paid number" 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
How residents of California can opt out from giving Blizzard permission to sell their personal data.