they keep calling my phone then hang up

They've called me a few times in the past two days. I don't know what it's for, they won't leave a message. I'm on the do-not-call list, too. I saw on another site that someone said they thought it was either Verizon or Wachovia.

keep calling be saying that i owed a debt and if i did not pay they were going to charge me with check fraud

keeps calling my place of work and cell phone claiming to be sueing me and is very rude. Using profanity when calling and asking for personal information credit card numbers and bank account info. I want it to stop and thier number to be disconnected. If u google this number u will c that they are harrassing alot of people. MAKE it stop please.

No message. Call back is a recording that puts you on hold.