If you made a purchase successfully, you may find the item in the in-game mailbox from the top right of lobby screen.
There is a possibility that your purchase may be temporarily delayed depending on the network connection (Wi-Fi or mobile data).
If you cannot find the item you purchased, you may check the in-game mailbox again after closing and reopening the game.
Furthermore, if you still cannot find the item, please contact the customer support.
※ We can provide support more quickly if you give us details such as 'Account ID, Purchase date and time, Price and name of the item, and the receipt' when you submit a request.