I'm thinking change of faction to horde,

Faction change costs 30 Points and provides:
- Character's race changed to the chosen opposing faction race
- Faction change is completed through the character selection screen in-game
- Faction change is irreversible and not eligible for refund <<<<< and what does it mean? cant back to alliance later? or just when i purchase the change,.

What will happen with my bank? and all my inventory?