Postpay it’s a very useful and convenient way to pay for the products you want in four interest-free payments. It’s especially useful during the holiday season, when you might be shopping more than usual. If you’d rather not spend all that money upfront, Afterpay is a great choice. Many shops on Rakuten offer Afterpay and you can still earn Cash Back while using it as a payment option. Here is a list of shops available on Rakuten that offer this useful tool.