"Can I convert my Battle.net Balance into cash?"Any amount you add to your Battle.net Balance, either through an approved payment method or by adding Diablo III auction house earnings to your Battle.net Balance, will not be refundable (except as otherwise provided by law), and you are not able to convert that Balance into cash. Battle.net Balance can only be used to buy designated Blizzard Entertainment products and services or to acquire items from Diablo III's currency-based auction house. In certain regions, Diablo III players may choose to receive cash, rather than add to their Battle.net Balance, from the sale of an item from the currency-based auction house. Those players will be able to do so via PayPal for an additional fee. Players will need to determine which method they wish to use at the time they post their auction. ""
Kilde:
http://us.battle.net/support/en/article/battle-net-balance-frequently-asked-questions-faq#q6Nogen der har undersøgt om man kan trække penge ud eller ej?