calls and hangs up immediately. Very annoying.

Caller ID said "Billing Dept".  We are current with all our bills, so I hung up on this number.

They called a couple of mins ago. It was a recording asking if I was not on some gov program (they mentioned a bunch of letters), I was eligible for something with Atlantic City Electric, then I hung up.

Called 3 times today without message.  I called back after 2 such phone calls with no message a few days ago.  They say press 1 to remove your number.  For whatever reason I was dumb enough to press 1 and enter my number.  They said they would remove my number within 72 hours.  If it really is a billing department, they would not have to remove my number if I had a pre-existing relationship.  BUT, the idiots don't answer the phone when you call back.  ANYWAY, they called again today three times.  I called them back and no answer once again.  Stupid company or sales tactics.  I still have no idea what they want and can't seem to find any information on them.  If I do talk with someone, I'll let them try to sell me something for a few minutes and then see if I can get their number to call them back...

@2 rings no message - ID says Billing Dept. Number is in Pennsauken NJ.

Caller ID says "billing dept" - left no message