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 avoid this problem, you should check out carefully Koa 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.

Normally, most of the websites you can print the grocery coupons from only work on a computer, even you can get coupon books mailed to your home for free. But it completely depends on Koa's support program at the time you search, so please visit the Koa site to know more details.

There is no certain number for the frequency of releasing coupons from Koa. But, most of the time, there will be at least one available. Special Discount Days such as Black Friday, Cyber Monday, Back to School Sale... come with many coupons.

Yes. The old coupons from Koa will be kept on the page if it has not expired. New coupons will continuously be updated.