Expiration rules depend on the specific situation. Usually, reward points earned in your account have a certain validity period (e.g., 12 months) from the date of issuance, and may expire if the account remains inactive for a long time.

Once points are converted into coupon codes, those codes typically have a specified usage timeframe (like 3 months). Event-issued discount codes cannot be recovered after expiration, so please remember to use them promptly.