After payment you will immediately receive a key Battle.net 50 USD
Quick and easy: Battle.net balance is simple and convenient to use.Digital games and services
Use Battle.net balance to buy World of Warcraft realm transfers and other paid services, as well as digital versions of Blizzard games like Diablo III and StarCraft II.In-game items
Activation tutorials:
1- Go to Battle.net Store
http://www.battle.net/balance
2- Carefully enter the code and select [Redeem].