Write a letter requesting an advertising agency for fee.

Dear Sir,

This is to bring to your kind notice that we are a (type of firm and nature of business), specializing in the production of compressors for use in the automobiles. We would like to inform that we are planning to produce a radio advertisement for a promotion to announce our new compressor, the Excellor 121 A.

I would await a reply from you regarding your fees as well as information about your plans to handle our account. Kindly call me at (---------) at your earliest convenience.

Thank you. 

Sincerely,