WooCommerce Smart Pack is a wordpress plugin which allow merchants to implement wallet system, reward or refund customers and sell unlimited number of gift card products on their website. These features are grouped into four different extensions, these include Wallet Extension, Refund Extension, Reward Extension and Gift Card Extension. Each of these extensions can be enabled or disabled depending on what features the merchant need on their website.
Demo: https://codecanyon.net/item/woocommerce-smart-pack-gift-card-wallet-refund-reward/20265145