I received a call from this number, and when I called back, I could hear a lot of people talking in the background, before someone said, 'Ordering Confirmation Department, how can I help you?'

same here about 10 min ago

I'm getting constant calls from this # and it's annoying! I don't want them to call anymore. They don't leave any sort of message, but sometimes they'll let the voicemail pick up and not say anything. Are they even legitimate or credible? Is this legal?

Called my telephone seven times:
Aug 11: 2:15 p.m. and 9:36 a.m.
Aug 10: 8:04 p.m., 4:39 p.m., 2:57 p.m., 10:33 a.m. and 9:48 a.m.

They have called over 20 times an I just answer and hang-up.   The number traced back to a spoof #.  Another site had a complaint that after ansering the call the woman found unauthorized charges against her credit card.  SCAMERS!!!