This was from Carnival.  The agent looked up my upcoming reservation and told me the price of my reserved cruise had dropped so there was an adjustment made to the final amount due!  I got to keep my same cabin # and category.  I was not asked for any credit card numbers or personal questions.  They had all the information to access my reservation after I gave them the required ID # to access my booking (which I had done before due a previous advertised price drop).  Immediately thereafter, I received in my email Carnival's confirmation of the upcoming cruise with the lower amount.   Carnival has a policy that if your cruise price drops at any time before your required final payment is due, you can request for a price adjustment.  This time, they called me!

Received to call today, December 3, 2013, missed both calls and no voicemail was left.

THIS IS A SCAM!! THEY CLAIM TO BE CARNIVAL CRUISE LINES CALLING TO VERIFY YOUR CREDIT CARD INFORMATION FOR YOUR SIGN AND SAIL CARD. I IMMEDIATELY CALLED CARNIVAL AND THEY SAID THEY WOULD NEVER CALL ASKING FOR THAT INFORMATION.
DO NOT GIVE THESE PEOPLE ANY INFO!!

They have been calling my phone 3 times a day and I have yet to answer. It would be wise of them to leave a message; even if its a recording.

Got this call from Carnival Cruises.  No idea why, I'm not planning a cruise.  In fact I've never interacted with them before in my life.  No idea how they got my number.

It was from the Carnival Cruises.  Reminder about check in procedures.  They left a message when I did not answer.

Carnival Cruise Line calling to tell me to arrive at the port for my cruise at a certain time.  Did not leave a message when I did not answer.  But called later and when I answered it was a recorded message.

It's from "Carnival Cruise Line".