What would you do if a person persistently keeps on messaging you even though you don't want to talk on here?

tell them to stop

block them?

Tell them to stop. If they don't, block.

I would block them

I will ignore them, unless they get abusive or harassing in any way. Then if its possible, I will keep blocking all their ids created to message me.

They're dead to me

Troll them.

Make them, block you.

If it annoys you ask them to stop, block them or put up with it.

Woman, I told you to give him hell and here you are again. Block that bitch. But before that make sure how serious you are about not wanting him to message you from different accounts. Geddit?