Spam caller, as noted above. Ok to block them.

called at 11:30pm!!! no message left. thankfully my cell wasn't near my bed

same thing here .. last night  they called me at 11:27 pm

I called the number back and pressed 1 to get my $100 award giftcard.  The girl answered from India and I hung up on her...HAHA

I got the same message as you did! I was just wondering if you ever got charged for returning that call? I know there's scams going around where you get charged like $30 automatically for calling back.. Do you remember if this happened to you?