忠誠
キャッシュバック
accrual
application
appreciation
back
buyer
card
cart
cash
customer
design
discount
earn
earning
earnings
enroll
enrollment
free
friend
gift
icon
incentive
level
loyal
member
membership
percent
percentage
point
points
premium
program
redeem
refer
referral
retention
reward
rewards
set
shop
shopper
shopping
store
stuff
supermarket
system
vip