kakaopay is a Korean digital wallet service operated by kakaopay corp. They offer online payment and offline contactless payment services using near-field communications and QR codes.
Their card uses your Kakao Money balance instead of your bank account directly.
kakaopay launched their check cards in January 2018. The card can be used in every BC Card member shop.
This page is not managed by the bank or financial institution and any employee won't reply to your question. If you have any inquiries to this company, please call 1644-7405 and get a help from them directly.