Frequent and Annoying Phone Calls: 433-533-9029

So, someone has decided to use my phone number, and now a collection agency keeps calling. Their number is 434-533-9029. Yes, I want all to know. I called them back and told them to stop calling. Then less than an hour later, they call again. I pick up.... nothing... no sound... no response. What is this? Are they trying to scare me?

Whoever is calling from 434-533-9029, STOP CALLING ME!!!! I never had any business with you and if you don't stop, it might begin to look like stalking.

Thank you.

Additional information:
They have called...
Aug 26, 2008 8:36 am
Aug 26, 2008 8:02 pm
Aug 27, 2008 8:39 am
Aug 27, 2008 8:13 pm

I called them on Aug 27, 2008 8:39 am to find out who this was and why they were calling me. It was some "financial institution" looking for "Solidad". When I told him not call any more, he said, "It will take 24 hours for the order to go through." When I told him to put my number on their do not call list, he says "that federal order only applies to sales solicitation." But I have no business relationship with them at all, there for those calls are unsolicited phone calls!