A．To ask about the automated billing system
B．To update her contact information
C．To report receiving duplicate bills
D．To challenge the company's assertions

A．Credit card and email records
B．Payment of late fees
C．Her business card
D．Copies of two billing statements

A．She called the company to complain
B．She paid her bills by telephone
C．She emailed her credit card company
D．She sent payments for late fees