2- If the products in your Cart belong to different web sellers, then you must checkout by clicking separately on each one. You will have different payments on new tabs.
To find a coupon:
Choose Coupon tab (it is just for coupons and deals):
1- Select Amazon/eBay categories.
2- Find what category of products you need.
3- Or search the products (You cannot search coupon on main website).
1- Blog, articles about electronics products.
2- Services, different online services that customer can use for free or by subscription.
3- Games, introducing new games or game packages.
4- Mobile, introducing best and new games, applications.