Possible scam alert: GIFT123....?

My wife received a PM from her and blocked her. I received one too 4 days ago. The message was kind of weird and generic sounding, and invited me to contact her through email. I responded saying I only talk here and not through personal email. I never got any response. Just now I got another from her...it was the same message (near exact wording) as before. I blocked it this time. I was just wondering if anyone else has had this experience, and if not I'm just offering a heads up.