UnionPay debit business is UnionPay collection and credit business, which is usually called UnionPay payment.

UnionPay collection refers to entrusted UnionPay collection, and payment on behalf refers to entrusted UnionPay payment.

UnionPay collection is based on the business entrustment agreement signed between the cardholder and the merchant, which allows the merchant to request and complete the designated payment from the cardholder's designated account according to the agreement. It can be widely used in various industries, including but not limited to insurance deduction, fund collection, water, electricity and coal payment, communication fee withholding, consumer credit repayment withholding and other fields.