When I check out, why am I getting the GATEWAY REJECTED message?

When I check out, why am I getting the GATEWAY REJECTED message?
KBA-02383-W7J4C
Question
When I check out, why am I getting the GATEWAY REJECTED message?
Answer
Gateway Rejected message means that the BILLING address provided isn’t matching the credit/debit card information that was provided.  Please, update your BILLING address to match your credit/debit card statement, and this message should disappear.
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