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

Firstly, you need to check out whether Monster offers Monster First Time Coupon Programs at that moment or not. If this program exists you can:

• Step 1: Sign up for a new Gmail, Yahoo, or whatever other email service provider that you want.

• Step 2: Complete your new Monster profile and start searching for Monster First Time Coupon.

Yes. Coupons for each Discount Event of Monster 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. 

Let us know via email, our team will confirm with Monster to fix and remove all Promo Codes, Coupon Codes, and Deals that aren't working.