Have you ever seen a message like this?

When this screen appears, either the Billing Address or the Billing Zip Code is incorrect. You may be able to Force the transaction through, but there are good reasons not to:
- Fraud - If a customer can't give you the correct billing address information, this could indicate they are not the actual cardholder. While this is unlikely, customers will appreciate that you take the time to correct their information.
- Cost - There is an additional fee added to transactions without a verified billing address, which costs your company money. 0.55% may not seem like a lot, but on a $2000 flooring purchase, that's $11. And those kinds of charges can add up over the course of a month or a year.
So it's worth taking the time to make sure your customers' information is secure and accurate. For more information on Address Verification mismatch, see this article.