They were due to pay the balance on delivery.

他们定在货到时支付余款。

《柯林斯英汉双解大词典》

You have to pay a high premium for express delivery.

快递须付高额的附加费。

《牛津词典》

As delivery men need to send the orders as quickly as possible, some pay little attention to traffic rules.

由于外卖员需要尽可能快地派送订单，一些人很少注意交通规则。

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Foodler, the online food ordering service that connects consumers with the widest variety of restaurants for immediate delivery, today announced that it is the first food ordering service to accept Bitcoins to pay for delivery and takeout.

WSJ: Foodler Becomes First Food Ordering Service to Accept Bitcoin Payments

Today many video companies pay content delivery networks such as Akamai for video delivery.

FORBES: Backed By $24M, Qwilt Builds Next Generation Video Infrastructure

Think about it: We pay package delivery companies a surcharge for the fuel used to transport our packages.

FORBES: Data Centers: The Energy Problem