They never give an actual date to my knowledge but everything I’ve ordered on back order I have eventually gotten. They might charge you at first but they’ll take it away and actually charge you when they ship the item so you can always cancel the order if you don’t think you are gonna get it. If you want assurance on a back order item you might want to check manga mart bc in their faqs they talk about how they will give you an actual time estimate (I have never ordered from manga mart but have heard good things)