IOS/ANDROID 
Instant Auto Delivery 

Dear friend, After purchase, you will immediately receive account details, even if I’m offline. No login issues! 
•    Activision username and Activision password ( Not compatible with Garena )
•    Full Email Access

If you have previously logged into the game, you should have no issues. 
However, if this is your first time trying to access an call of duty mobile account, I recommend watching some YouTube videos on how to log in before making a purchase.