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 CarCovers.com 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 CarCovers.com checkout system or a customized checkout system that accepts the coupon.

To avoid this problem, you should check out carefully CarCovers.com 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.

Our advice for you to use CarCovers.com Coupon effectively is to choose the right day.
Like thousands of other consumers, the time of promotion is when they choose to
shop at CarCovers.com, so take advantage of coupons released on those days to save.

Shoppers can get coupons for their first purchase at the store. However, it is not all the time, sometimes, they cannot apply a discount on items selling out or items not contained in the promotion program. It depends on the time you shop at CarCovers.com.