What did you do about it because it keeps happening to me.  It happened a few months ago and now it has begun happening again.  They call all day everyday and all night ending around 4:30 in the morning.  I can't stand it.  I want to do more than just block the number because that is just about annoying.  Your phone rings in the middle of the night (cell phone) and you jump up thinking there may be something wrong with a family member or good friend.