滿意保證/ 退款保證 英文

Money back guarantee

A money-back guarantee, also known as a satisfaction guarantee, is essentially a simple guarantee that, if a buyer is not satisfied with a product or service, a refund will be made.

「退款保證」，即「滿意保證」，本質上就是保證當買者不滿意產品或服務時，可以拿到退款。