This is the 4717th most frequent Korean word.
결제하면
"결제하면" means "if (you) pay" in English.
Here, '결제하면' highlights the cause-and-effect relationship between paying for a drink and the points being deposited.
카페에서 음료를 결제하면 포인트가 적립됩니다.
If you pay for a drink at a café, points are accumulated.
The word '결제하면' in this context shows the condition ('making a payment') required for event participation.
이벤트에 참여하려면 물건을 결제하면 돼요.
To participate in the event, you just need to make a payment for the item.
In this sentence, '결제하면' is used to express an action ('make a payment') that leads to the conditional outcome ('receive a discount coupon').