An Atlanta attorney has sued one of the nation’s largest credit card distributors on behalf of a potential class of credit card holders in a complaint that reflects the public frustration with credit card lender practices that have already prompted some congressional reforms.

The suit filed by E. Adam Webb, a partner with Webb, Klase & Lemond in Atlanta, challenges a decision by Capital One Bank (USA) N.A. to raise interest rates on many of its existing credit card accounts following Wall Street’s crash last year.