*** Bronx Merchant ***

1. API Purchase

	- Select items
	- Redeemp auth 
	- Cut point (if redeemp)
	- Check pay status (confirmation)
		+ if pay immediately, calculate earn point (transaction cannot cancel)
		+ if not, will calculate earn point when transaction mark as completed (transaction can cancel)
	- Save purchase transaction
	
NOTE: if cancel transaction, reduce point willl return/refund.