I noticed that the comments saying the gift card came were both from the same name "Jake." Scam.
When they call and hang up after you answer, it's because they have an auto dialed that calls several numbers at once knowing not everybody will pick up. When people answer, they forward the calls to the operator in the order they picked up. If more people answer than there are operators available, they disconnect.
I'm from Texas and got a call from this number (305) 384-7367 tonight. I did not answer, and they did not leave a message. After reading the comments, I'm glad I didn't!
I received a call from the same #: 305-3847367. Didn't recognize the number so didn't answer. Got the call on 06/09/2014 at 9:10 PM. Tried differnt reverse look-up services and they said the # was in Dade, Florida. However after reading the other posts on this site I have my doughts. When I tried to call the # back got nothing.
Thanks to all of you who've posted about this #.
Sincerely, Chris