Several well-known internet shops offers printed RE4B English edition. (I wouldn't mention them here, of course.) Well, I'm taking this as another sign of my fame... Fighting with them is just hopeless, as with any other pirates.
Just to remind: RE4B is freely available at https://beginners.re/. Only Korean and Iranian publishers are authorized to sell printed RE4B in corresponding languages, no one else.
Still, if you want printed book, order it at your local copyshop.