Today I won a gold box and promoted to warrant officer 2 and got some bonus.
How do I view them?
How do I exchange gold box with crystals?
Your gold box supply can be dropped in any battle (provided supplies are turned on in the battle), and will reward you with 1,000 crystals if you take it. If you want to ensure you catch it, and not someone else, I would suggest dropping it in a private PRO Battle, with no one else in the battle.
Your rank up rewards can be accessed by going into the HTML5 version of the game, navigating to the Missions tab, and clicking "Special Missions." One of the Special Missions listed will be called "Rank Up!" and should have a claim button. Click the claim button, and the crystals will be automatically added onto your account.
Hope this helps!
Customer support service by UserEcho