Information about Call of Duty points
Blizzard servers could not be reached or may be offline.
Information on Call of Duty: Modern Warfare 2 Campaign Remastered System Requirements
Unable to send new Battle.net friend requests.
How to resolve this error in Call of Duty: Modern Warfare 2 Campaign Remastered
Troubleshooting steps for issues installing the PTR client
Troubleshooting steps to link PayPal to the Battle.net account
Steps for linking a Third Party Platform's account to your Battle.net Account.
Types of issues Blizzard Customer Support can help you with on Activision games
What to do if you receive an error that your code is already claimed in your account.