Are you, by the way, gifting the free DLCs found in the Namco website as different DLCs?

https://www.bandainamcoent.eu/vipcorner/page/3

Because, and this is just a friendly reminder, this is very serious. Misleading & gifting free codes are not tolerable on SteamGifts. If the winner marks as received a different item than the one he/she receives, he/she could get in trouble for "not activating won gift" for the gift he/she actually should have won. The Free DLCs found in the Namco website are exclusive DLCs for that site and not the same DLCs found on the Steam Store. Just saying...

https://www.steamgifts.com/about/guidelines

Hi, I won this but I already have it, so please open a support ticket to request a reroll

Oi, usei o Google Translate para isso, então exagere os erros.
Entre em contato com o suporte e peça um novo vencedor. Eu já tenho esse DLC. Obrigado.