You can scan the QR code as many times as you like, but you can only bank its Yeokens once. Every time you scan the same QR code again, you will see the message "Code already scanned and banked".
You can scan the QR code as many times as you like, but you can only bank its Yeokens once. Every time you scan the same QR code again, you will see the message "Code already scanned and banked".