Discount codes don't stack. If you have 54% off discount, they can't also use a "free shipping" coupon since Only one discount at a time can apply to a single order at the premier site.

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

Yes. Coupons for each Discount Event of premier 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. 

There are now 2S offers on our site and premier Coupon Codes usually end in 3-4 days. However, some premier 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.

Our advice for you to use premier Coupon effectively is to choose the right day.
Like thousands of other consumers, the time of promotion is when they choose to
shop at premier, so take advantage of coupons released on those days to save.

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