Which service is involved in charging a fee for verifying a cardholder's address?

The Address Verification Service (AVS) is specifically designed to enhance the security of credit card transactions by verifying the address provided by the cardholder against the address on file with the card issuer. This service plays a crucial role in reducing fraud, as it helps merchants confirm that the person making the purchase is indeed the legitimate cardholder.

When a transaction is initiated, the merchant sends the cardholder's submitted address to the card issuer. The issuer then checks this address against the one associated with the card account and returns a response indicating whether there is a match. If the addresses align, it serves as an additional layer of fraud protection, making AVS an essential tool for businesses that handle credit card payments.

The other options pertain to different aspects of verification and assessment. The Credit Verification Service focuses on checking the creditworthiness of a customer, the Transaction Assessment Service typically involves evaluating transaction details for risk purposes, and the Identity Verification Service assesses a customer's identity more broadly than just their address. Each of these services serves important functions in the payments industry, but they do not specifically deal with the verification of a cardholder’s address as the AVS does.