Activation of Wrath of the Lich Classic HEROIC only for RU and EU regions.
After paying for the goods, you need to contact the seller and write your BattleTag.
After that, you will receive a BattleTag friend request from the seller.
3 days after mutual friending, the seller will send you a gift.
The gift will contain an activation of Wrath of the Lich Classic HEROIC.