On my iPhone, I have my family tagged as favorites. Then I enable the Do Not Disturb from the settings. I allow only calls from those in my favorites. Otherwise, I won't ever hear my phone ring or buzz on vibrate if I get a call from these people.
Many calls to my cell phone - only close friends and family have the number. Never leave a message. Seems tied in with 913.312.1013 since both show Comenity Bank as the INDIVIDUAL these numbers belong to. Never heard of them, and I don't owe anyone anything.