Was this resolved?
I recently used Collection Shield 360, and they came Back stating that National Credit Systems was in violation of their reporting, so they kind of took that off of my hands.
I also have PDM as a baddie on my account, and I am waiting for tax return to offer a PFD, but from what I've read here they send a letter back saying 'if OC agrees to deletion.'
I intend on asking my OC about that before I pay it or agree to PFD and see if I can get it in writing.
Let me know if you've had success since this post.