I continue to get unwanted instant messages (spam and/or "hey baby" ****) from people I do not know. Since they are NOT a contact of mine I cannot limit their access or anything else. Please tell me there is a way to block/stop these messages. I cannot see their email address to add to my blocked list. see examples below:

Tracy Johnson

Hey i wanna meet you ,msg if you can

11:20 AM

Lasonya Kraling

well hello there

11:20 AM

Kallie Workman

Was up there...

11:20 AM

Valorie Dukes

Im all urs right now if you care..

11:20 AM