After the transaction is complete, customers will usually receive a email.

A popular online payment system is .

payment systems allow users to make transactions using their smartphones.

To use an online payment system, users typically need to create a .

To complete a transaction, users typically must enter their for security.

Once the payment is authorized, the funds are then from the customer's account to the merchant's account.

In an online payment system, a customer typically starts by selecting items and clicking on the button.

Some online payment systems offer buyer in case of disputes.

When making a payment, the customer's card information is encrypted to ensure .