Hi, Was your inventory full when you turned in the quest? If yes, the Exotic Cipher wost lost because they do not go to the Postmaster. Exotic Cipher's only go to the player's inventory. You will have to do the quest again next week to get another. Bungie will not replace lost items. [quote]Deleted Item and Character Policy Whether due to accidental deletion or unauthorized account access, Bungie does not recover manually deleted characters or items, and does not replace in-game items that are lost or dismantled. Restoration of deleted characters Recovery of dismantled, scrapped, deleted, or otherwise discarded items Recovery of mistakenly Infused items Recovery of items lost due to a Character's Postmaster being full [b][u]Recovery of items lost due to Player Inventories being full[/b][/u] Restoration of access to items or content gained through game sharing Refunding in-game currencies on accidental purchases Refunding Silver or transferring Silver between platform accounts, Destiny releases, or inactive accounts in any capacity Transferring items or characters between platform accounts or inactive accounts in any capacity https://help.bungie.net/hc/en-us/articles/360048717732-Deleted-Item-and-Character-Policy[/quote]