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”.

Normally, one discount code is only applied for one offer. However, If the users put a vast of items in their cart, it is easy to use one coupon code to purchase items. It depends on Sparkplugdepot's policy, you can contact Sparkplugdepot via mail for your reference.

Most Big Discount Events of the year witnessed a vast number of coupons from Sparkplugdepot 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 Sparkplugdepot with numerous coupons.

Yes, all Sparkplugdepot coupons are here, which are Black Friday, Cyber Monday, Christmas, Halloween, Easter, New-Year Sales, End-Year Sales, Student Discount, Military Discount, ...