DNC disposition not working, calls being made to the numbers

[john_usc]

I am using goautodial my vicidial version is

VERSION: 2.9-441a
BUILD: 140612-1628
© 2014 ViciDial Group

I seem to have an issue where the leads are being called back even if the agent has them disposed off as DNC

In my DNC system setting I have Agent Selectable, Human answer and DNC selected YES and rest are NO

here is the example of a number that I agent disposed off as DNC but was called back

668041 1010 7201234567 FirstName LastName 2015-01-07 10:20:04 B VDAD
870584 1028 7201234567 FirstName LastName 2015-01-28 16:54:15 NA VDAD
871474 1032 7201234567 FirstName LastName 2015-01-23 15:26:55 DNC agent011


As you can see above in goautodial list that the agent011 added it to DNC on 2015-01-23 15:26:55 but it was then again called back at 2015-01-28 16:54:15?
I wonder what would cause that behavior? Could reset lists cause that issue? If yes, how to prevent it? If not then what is going on?

My Campiagn has use internal and use campaign DNC selected to Y