BLZWEBBMP00000644

This error may occur for the following reasons:

• The game account you're trying to purchase content for is banned or suspended.
• Your Battle.net account has been restricted from making further purchases.
• Your account has reached the purchase limit.

If you think this is an error, visit our Account Restrictions page, which will have details on restrictions (including when those restrictions expire (and how to appeal, if applicable) that are active on a Battle.net Account. We also send penalty details to the email address associated with the Battle.net Account.