If it is the cardholder himself and the inquiry is made at the counter, you can inquire the credit card statements within 5 years. If the inquiry is made through the bank's online banking, credit card statements can generally only be queried for three years. When making inquiries, the enquirer needs to provide the cardholder's ID card and credit card. In addition, if you query through mobile banking, you can usually only query bill information within the past year.