Explanation:
A pitchbook is confidential document. It is basically a sales document, used by the sales force, which contains main features or attributes of the firm, the potential of the firm and the future aspects of the firm in detail.
So keeping the given question in mind, I would write to my supervisor as follows:
Subject: Assistance Required
Body:
Dear Sir,
By reviewing the whole document finally, which is to be presented to the client tomorrow, I found some mistakes in the results. I came to know that the results are incorrect and are surely needed to be corrected before the presentation.
I recommend you to delay the meeting for 3 hours by the scheduled time, as i need to check and correct the whole figures again and this would take time.
I am looking forwards for your advice.
Best Regards
