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Richard
Richard

Posted on • Originally published at detecthiddenfeesnow.github.io

How AI Detects Hidden Credit Card Fees on Your Statement

Americans paid $130 billion in credit card interest and fees in 2025. AI detects annual fee errors, interest miscalculations, penalty APR errors, and foreign transaction overcharges.

What AI Detects

Annual Fee Errors - Fees charged during waived periods. Retention credits not applied.

Interest Calculation Errors - Daily periodic rates exceeding disclosed APR. Average recovery: $120.

Penalty APR Misapplication - Applied after one late payment when agreement requires two or more.

Foreign Transaction Fees - Charged on domestic purchases processed internationally. Affects 5% of cardholders.

Cardholders save $220/year. Try it | Guide

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