スタンプカード

noun

stamp card; loyalty card

A card that gets stamped with each purchase, often leading to a free item or discount after collecting a certain number of stamps.

• このカフェでは、スタンプカードが一いっ杯ぱいになるとコーヒーが一いっ杯ぱい無む料りょうになります。

  At this café, when your stamp card is full, you get a free coffee.