To use the Ebay coupons on their website, you need to meet the conditions:

•  The items you choose must meet all coupon requirements as explained in the Terms and Conditions.

• The coupon has not expired. 

• The seller uses the Ebay checkout system or a customized checkout system that accepts the coupon.

With the aim to help the customer save their finance when shopping online, Ebay gives many discount programs for specific invoices. With an invoice over 100$, you can get 57%. Moreover, the larger your bill, the higher the discount you will get.

Discount codes don't stack. If you have 57% 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 Ebay site.

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

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

Gift Cards from Ebay are usually offered on major discount days or to loyal customers. If available, it will be shown. Let's check the coupon list.