Wish to receive the paid month of a subscription? - Return in game of the friend

Blizzard announced the initiative, called to return in World of Warcraft the players who have left still to release of addition The Burning Crusade. Now all American subscribers of game can send to the friends and acquaintances special letters - Scrolls of Resurrection, containing the invitation to familiarise with the trial 10-day version of addition. If someone from addressees of such letter renews a subscription on WoW its author will receive free month of game (for everyone returned). Dispatch of letters is made from special section of a personal office.

About occurrence of similar possibility in the European subscribers of game while it is not known.