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

There are now 5S offers on our site and mash Coupon Codes usually end in 3-4 days. However, some mash Deals don't have a definite end date, so it's possible that the code will be working until the store runs out of inventory for the promotional item.

All deals from Promotion Programs of mash 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.

At the time of updating, mash has not applied Student Discount all year round yet. Check the official store and reach out to the customer support team to be clear.