It's like a barcode that can be read to give information about a product (in this case, it's like a Yeokens barcode). Each QR code is unique and your Yeokens code is embedded in it, so your Yeokens will be banked automatically.
It's like a barcode that can be read to give information about a product (in this case, it's like a Yeokens barcode). Each QR code is unique and your Yeokens code is embedded in it, so your Yeokens will be banked automatically.