All coupons are under the terms and conditions of the coupon provider or advertiser. That being said all coupons have an expiration date; however the retailer or business does have the right to turn down the mobile coupon as the coupon is not legal tender. Check each coupon carefully before use as use may be descriptive. Don’t worry if your coupon does not save you money on what you need. Retailers update and add coupons regularly, so just check back again soon.