Questions about the discounted blizzard services

[Vampiregenesis]

I cant find anywhere the level 100 boost , how much it cost now? is this service unavailable? also is it possible to buy a new legion expansion with battlenet balance while you already have the legion on the account? i want to convert my tokens to balance and buy legion again for a new wow account but im not sure if thats possible since i already have legion on the current account.

[Onikaroshi]

It's not on sale, and is only available in game.