a number in the game keeps bothering me. i don't know the identity of the user, but i'm very uncomfortable, i tell him i don't want to talk, he sends me threatening messages saying he's going to kill me. blocking it doesn't work either, he writes from other numbers

this is other phone number and he keeps changing number and annoying me i know i should block him but he wont stop

This phone number keeps texting me and giving me demands to kill me and keep annoying me i dont know his id in game but i know his other phone number.