[Update]:
As compensation for the P&D Pass exclusive 16th of the Month Dungeon issue, Descended Boss Egg Machine x4 Pulls will be distributed starting 9/20 (UTC-8) to players who only received 1 pull.
We have noticed that the in-game reward mail for the P&D Pass exclusive dungeon, 16th of the Month Dungeon was not working as intended.
This issue has been fixed as of 9/16 20:03 (UTC-8).
Compensation for the issue will be distributed to affected users at a later date.
We apologize for any confusion this may have caused and thank you for enjoying Puzzle & Dragons.