Redeem via the deal links or in-game menus.
https://genshin.hoyoverse.com/en/gift?code=GI56Paralogism
https://genshin.hoyoverse.com/en/gift?code=ChefEscoffier0507
https://genshin.hoyoverse.com/en/gift?code=IfaCacucu0507
After redeeming the redemption code successfully, the system will issue the rewards via in-game mail. If there are no special circumstances, the mail is valid for 30 days by default. Please log into the game to claim it as soon as possible.
Thank you