When can I have your firm C . I . F . prices , that is to say , the final offer , Mr . London ?   We ’ ll have them worked out by this evening and let you have them tomorrow morning . Would you be free to come by then ?   Yes . I ’ ll be here tomorrow morning at 10 .   Perfect . Our offer remains open for 3 days .   I don ’ t need that long to make up my mind . If your prices are agreeable and if I can get the commission I want , I can place the order right away .   I ’ m sure you ’ ll find our price most favorable . Elsewhere prices for hardware have gone up tremendously in recent years . Our prices haven ’ t changed much .   I ’ m glad to hear that . As I ’ Ve just said , I hope to conclude some substantial business with you . 