This is an email
Lorraine and Paul: Greetings. Our first invoice under our new firm transportation agreement is incorrect. I have asked our accounting people to call Laura Giambrone to discuss but wanted to bring this to your attention in case she needs your assistance to understand the terms of our deal. The invoice includes a "reservation" charge equal to the October MDQ times the number of days in the month times the discount rate, which is correct (35,000 x 31 x $0.08 = $86,800). However, the invoice also includes a "commodity" charge of $3,945.47. I believe it is just a matter of setting it up correctly in the computer because the invoices we received under our old contract also included a "reservation" charge and a "commodity" charge, but the two together equaled the negotiated rate. I would appreciate any help you could provide to get this set up correctly and our October invoice corrected. Thanks,

What is the subject of this email?
Oct. Invoice