Sharing Media :-|

Hi,
I have a Plex Pass Lifetime account & someone (they change their names) keeps sending me messages about a share…sorry if not explained better, but I do not know this person, they share, then it gets removed & I get an automated message from Plex.
I do not accept these, & Plex (via the bot), still says this has been removed, my account is ok & ‘invites’ me to set up my own PMS - I already have. I do not want to contact this ‘person’ -for obvious reasons.
My question: If I just continually ‘ignore’ this person, will Plex account for this?

Just ignore the invitations from this person.
If they are particularly insistive, report their username(s) to me per PM.