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 Nebula 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 Nebula checkout system or a customized checkout system that accepts the coupon.

Please check out Nebula's site to be sure that there are available Nebula coupons for promotions or Customer Service at that time. In case you are chosen to obtain those available coupons, you may receive your coupon by email, or a mailed catalog or postcard.

It depends! Normally, the percentage that you can save with that Nebula Coupon will be shown right on the page, so you can see if it is applied sitewide or not. However, once you are not sure, try it right on their's products you want to buy.

Most Big Discount Events of the year witnessed a vast number of coupons from Nebula released. Especially, on federal holidays such as New Year’s Sale, Thanksgiving, Christmas... or on other important days such as Valentine’s Day, Easter, and Father’s Day..., customers also can buy at Nebula with numerous coupons.