Caller identified as calling on behalf of the do not call register and saying they had received notification from us that we were still receiving unwanted calls. then offering to re register our number. I then called the do not call register and they informed me they do not make unsolicited calls and informed me that the call I received was probably leading up to me paying for re registration via my bank acc.... didn't let them get that far and obviously the call back 1800 number they gave me was a dud.