u can use the same facebook account on the same device. JC ban my first account i had it since the game launched, they banned me cause i "bought several items in game and then ask for a refund", spoiler: i've never spend money on any game, never ever, i started to use this mod and even when my facebook was ban, i just "restarted" on the same acc. Just start the game, get the tutorial and then save on the facebook acc (Y)
You can play with a new account on the same device. Just install once again, connect it with facebook, & choose the new account. Your old one will be gone forever, but there's no chance of getting it back again. So..