Normally, the military discounts programs on some occasions of the year. In order to know whether it is offered or not is depended on mi-shop's policy sales, you can visit the store now for your reference.

In case you enter a discount code during checkout that doesn't exist or isn't currently active, then you can see the message: “Unable to find a valid discount matching the code entered”.

To use the mi-shop coupons on their website, you need to meet the conditions:

•  The items you choose must meet all coupon requirements as explained in the Terms and Conditions.

• The coupon has not expired. 

• The seller uses the mi-shop checkout system or a customized checkout system that accepts the coupon.

To avoid this problem, you should check out carefully mi-shop promo code before that promo code could be expired, some promo codes are tied to a minimum purchase, a first-time purchase, or tied to geography, and other reasons.