It is not possible to move a Call of Duty account to another Battle.net account

Have not received gold or items from a CoD (Charge on Delivery) mail.

Can't Upgrade Call of Duty: Black Ops 4 Standard to Digital Deluxe

What to do if you placed an order for Call of Duty: Modern Warfare 2 but it didn't go through.

What to do to unlock the Battle Pass after purchasing Call of Duty: Modern Warfare Battle Pass Edition.

How to resolve mistakes claiming a CoD key on the wrong Battle.net account

Information about Call of Duty points