Maybe it is some celebrity, maybe some site, but suddenly you get a message that you won something. Maybe the celebrity or the site sends you text messages asking for you credit card number to send the $$.
DON’T EVER GIVE YOUR CREDIT CARD NUMBER TO ANYONE.
And if somehow one gets it, NEVER GIVE YOUR PASSWORD.
Right now on Facebook there are a number of scams running.
Anyone offers you anything, your response is NO.