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

It depends! Normally, the percentage that you can save with that joybos.com 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.

Yes. Coupons for each Discount Event of joybos.com will be collected here while being updated day by day. Sometimes, there will be deals not updated promptly but it's rare, we expect sympathy from you. 

All deals from Promotion Programs of joybos.com are collected here. For each certain occasion, its coupons will be on the top of the coupon list, and surely they always come with an expiry date.