I keep getting harassing phone calls

I am in the same boat, I get calls day and night from different 620 area codes, but they just hang up.  I have no debt, so I have no idea why these jerks are calling.  Many have said to write them a cease and desist letter but I can't get an address and when I call back, it says the number has been disconnected.

National Credit Adjusters
327 W. 4th Street
Hutchinson, Kansas 67504
Fax: 620-379-2270
Brad Hochstein
Dick Smith

620-663-1265
620-665-7708 or 800-542-1048
620-664-6192 or 800-835-9313
866-570-6085     901-357-9645

What would you think when you return a call to: 800-835-9313 and the idiots at the other end in (Hutchinson, KS) will not identify themselves, yet threaten you with legal actions when you don't even know who they are?

This one is National Credit Adjusters.

DON'T waste your time calling them back, they aren't worth it. Agency owner Mark L. Huston must REALLY be embarrassed by his workers, otherwise why would they refuse to give even the most trivial of information?

Show Mark Huston and all of the trash working for him that we consumers are NOT into playing games with his sleazy debt collectors. Fax him the FREE cease-comm letter so he can NEVER contact you again. His fax number is: 620-664-5947

Mark Huston is a scavenger debt buyer, which makes him a gambler He is betting that he can buy old debts for pennies, then harass you into paying him dollars.

http://www.budhibbs.com/collectorpages/national_credit_adjusters.htm

I do not know how I am receiving calls from this number because I had been register long time ago in DO NOT CALL. Also I do not understand the message they left. I will file a complaint with the company DO NOT CALL.

They claim I have an account that needs attention. First of all I don't, and NONE of my accounts are ever behind. This is obviously a scam of some kind. When I refused to give them any info, they got pissed at me, and hung up!