Business email - draft to native tone, with notes on what changed

Rewrite the draft below as a business email.

Situation: {situation, e.g. chasing a supplier for a late delivery / declining a partnership / explaining a delay}
Tone: {tone, one of: formal / neutral / friendly}
Recipient: {who they are, e.g. a procurement manager I have not met}

Requirements:
1. Write idiomatic English. Do not translate word for word.
2. Structure it: greeting, one line saying why you are writing, body, a clear request for action, sign-off.
3. Keep the whole email under 150 words.
4. After the email, add a "What changed" section: one line per edit, explaining a tone or
   cultural adjustment you made and why.

Draft:
{draft}

How to use

Write the meaning out roughly first - do not polish it. The "What changed" section is the part worth keeping: after a handful of these you will recognise the patterns, and can reuse a previous output as a template for the same situation.

Variables

Variable	Description
{situation}	The purpose of the email, one line
{tone}	formal / neutral / friendly
{recipient}	Who receives it and your relationship to them
{draft}	Your rough draft