Getting sick of these calls contact the phone carrier Level 3 abuse line 1-800-348-5457 tell them the client using their  service is calling and harassing your business and breaking the (AUP) Acceptable Use Policy by harassing, I am sure they would be glad to help you.  if you call and get a qualified company response please do a follow up post Thank You!

Annoying calls with no one on the line.  On call back, recording says we cannot connect your call at this time, and recites the number 200 33.

they keep calling ...3 times in about 10 seconds....wtf...i run to the phone in my mom's 5" stilletto heels and thigh high stockings with garter belt with her 44dd bra and a very tight dress.  I almost tripped on the way.  once i get to the phone i realized i can't answer it anyway as she makes me wear a ballgag all day.  Can't wait for her to come home so we can play and my tool can get some use...laters

the FCC ought to get people like this to pay our cell phone bill

Listed from another Phone ID sight. They are Nova Merchant Services, LLC. They are a credit card company. Their phone number is 704-552-4000. Website- novamerchantservicesllc.com. Hope this is helpful in getting these phone calls to stop.