The phone number is invalid

This error means you made a typo or added hyphens. Make sure you are entering the number correctly, without hyphens.

This error can also happen if your number doesn't belong to the country registered in your Blizzard Account. If you have moved countries, update your registered country and try again.

You will also receive this error when trying to add a pre-paid phone number. Pre-paid phone numbers cannot be used for phone notifications. Customer Support cannot bypass this limitation.