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”.

Of course not, most coupons may be used only by you when you received them directly from Namecheap.com. As the Namecheap.com coupon includes your User ID, it cannot be resold or transferred in any way.

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 Namecheap.com's policy, you can contact Namecheap.com via mail for your reference.

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 Namecheap.com.

It is hard to see a Sitewide Discount of 50% from Namecheap.com on normal days. It's easier for you to shop on federal holidays or important days of the year. New Year’s Day, Thanksgiving, Christmas, Military Day...are recommended.