I received call from this number three times in two days. When I answer no one is there.

I have had three calls in as many days from this number, with the same reported message.

i was thinking it might be something related to my entry in the McCafe contest at McDonald's .. could it be that?

I got this too from this number today and the same "good bye" from another number yesterday.  Any idea what these are?

When I answered today, 10Jun09, I heard an automated message saying "good bye".  I have had two calls 10Jun09 and 9Jun09 at exactly the same time (3:14P EDT) on both days from the same number.