Some games require that you add a phone number to your Battle.net account
Steps on how to create a new Administrator Profile.
Information on how to create a Battle.net Account for yourself or on behalf of your child
Information on linking your Twitch or YouTube account to your Battle.net account.
This article highlights a few passages from the EULA that are most relevant to this policy.
What to do if you cannot locate your Overwatch Battle.net Account.
What to do if the website returns "Connection Error" when adding a phone number
Before you can connect to the game servers, you must add a phone number to this account.
Information on the Overwatch 2 Account Ban or Suspension, and how to appeal the decision