Who called from 6783194378

Pre-recorded message to my cell phone.............."This is the Green Settee (sp?) company and you have been pre-selected to win a free...."  Second call from this company on my cell phone, but different number.  Added to auto reject list.

Called and left message in regard to security systems in my area.  I'm on do not call list.  How can they still contact me?

3rd to report.

Called our Atlanta branch number and left no message.