what does a billing address do refers to the address associated with the payment method used during a transaction. This address is crucial for verifying the identity of the person making the purchase, ensuring that the payment is legitimate. When a customer enters their billing address, the merchant uses it to match the information provided by the credit card issuer or payment service. The billing address can also be used for fraud prevention, as it helps verify that the person making the purchase is the rightful cardholder. It’s important to ensure the billing address entered is accurate to avoid any payment issues or delays.