2.2 Online Card Payment Cancellation Process

@PayOn development group

	Merchant	PayOn PG
1	Create a payment cancellation request message
2	PayOn Online Card Payment Cancellation Request -> -Delivery of payment cancellation message (POST method)
3		Online card payment approval details inquiry Payment cancellation details verification Payment cancellation processing.
4		<- Response to payment cancellation result.
5	internal processing according to the result of online card payment cancellation.