Yes, I completed three forms: One for AATC, two for DL as at first I thought maybe the ring was lost just before landing at FCO. In all, I have completed two DL forms specific to ATL E SC.
The auto reply emails I get mention a total of 3 weeks then a missing item is no longer their concern. I noticed the link you provided confirms that they will not let you call them. Remember, I got a DL DM agent to call DL baggage L&F and they insisted my only route was that online form that to date has been a waste of time.