When you purchase an item in a game which was downloaded and installed from ONE store you can find your purchase receipt following these steps:
ONE store (S. Korea)
- Open the ONE store app
- Open the 'Me' menu [ 마이 ] (bottom right corner)
- Choose 'Purchase history' [ 구매내역 ]
- Tap on 'In-app purchase' [ 인앱구매 ]
- Choose the purchase which caused the issue
Please copy the order ID (TxID) in your message and also take a screenshot from the receipt where the transaction details are visible!
ONE store Global (outside S. Korea)
- Open the ONE store app
- Open the 'My' menu (bottom right corner)
- Choose 'Purchase history'
- Tap on the 'In-App purchase' tab
- Choose the 'Receipt' text for the purchase in question to view more details about it
Please copy the order ID (Receipt Code) in your message and also take a screenshot from the receipt where the transaction details are visible!