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 Amazon4n's policy, you can contact Amazon4n via mail for your reference.

Usually, Coupon Stacking is not allowed at Amazon4n. However, the store will surely give out notice if available.

Yes. Coupons for each Discount Event of Amazon4n 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. 

Our advice for you to use Amazon4n Coupon effectively is to choose the right day.
Like thousands of other consumers, the time of promotion is when they choose to
shop at Amazon4n, so take advantage of coupons released on those days to save.

All deals from Promotion Programs of Amazon4n 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.