Please check your mail for the code (can check your spam mail as well).
1. Select the "Redeem Wargaming code" option near the top right corner of the Premium Shop's home page.
2. Enter the code and then select "Redeem".
Please note :
The World of Warships prepaid cards come pre-loaded with Doubloons and are not designed to be purchased via the Premium Shop.
Upon redemption, you will receive your Doubloons in-game.
$20 = 5.000 Doubloons