- Select an available Store Credit item in the Line category, and make a purchase
- Wait until the seller confirms the order and sends the code via message feature in itemku
- Open a browser and go to https://store.line.me/
- Login using your LINE account
- In the left menu select Add Credit
- Select menu LINE GIFT CODE then press Continue
- Enter the voucher code you have received from the seller and press Add Credit
- Check your Credit Nominal , make sure it has increased according to what you bought
- If it fits go back to itemku and complete your order