fix(LOY-175): fix issues of getting correct expiration date on reward coupon

apps/scandic-web/utils/rewards.ts

@@ -14,7 +14,6 @@ import type {
 } from "@/types/components/myPages/rewards"
 import type {
   ApiReward,
-  Coupon,
   RedeemableCoupon,
   RedeemLocation,
 } from "@/server/routers/contentstack/reward/output"
@@ -82,8 +81,8 @@ function getFirstRedeemableCoupon(reward: ApiReward): RedeemableCoupon {
   return sortedCoupons[0]
 }
 
-function getEarliestExpirationDate(coupons: Coupon[]) {
-  return coupons
+function getEarliestExpirationDate(reward: ApiReward) {
+  return getReedemableCoupons(reward)
     .map(({ expiresAt }) => expiresAt)
     .filter((expiresAt): expiresAt is string => !!expiresAt)
     .reduce((earliestDate: Dayjs | null, expiresAt) => {