ABC Corporation is a big manufacturer of industrial products. It has several suppliers of raw materials. The BIR suspects that some of the suppliers are not properly reporting their income on their sales to ABC Corporation. The CIR therefore: a. Issued an access letter to ABC Corporation to furnish the BIR information on sales and payments to its suppliers on the alleged ground that the suppliers are committing tax evasion. ABC Corporation and the suppliers have not been issued by the BIR letters of authority to examine. ABC Corporation believes that the BIR is on a "fishing expedition" and comes to you for counsel. What is your advice?