They called me have no idea who it is.

Same here, no message left, didn't pick up because I didn't recognize the area code.

I just got a call from this number too, I tried calling it back and got a busy tone.

just picked this up from another site.

It's an automated call that asks questions about: gender, age range, education level, home ownership, diabetic, grocery shopping.  It says you get two passes for a cruise.  You can press zero to all questions and it moves to the next question.  When complete it says press-1 for attendant, where you should give you name to get the passes.  At this point it disconnected.  It is some kind of scam.  Perhaps it is gathering some personal profile info for identity theft?

It is a collection agency