A. 1. Verify Discount Eligibility: Check the terms and conditions of the discount to ensure you meet all requirements. Look for any expiration dates or specific items that qualify. 2. Restart the App: Close the app completely and reopen it to refresh the session, then try applying the discount again.

B. 3. Check Payment Method: Ensure that the payment method you are using is eligible for discounts. Some discounts may only apply to specific payment types.