Similar to business writing - in any correspondence you need to put your hard request in the first sentence after your introductory salutation. Be very explicit

Similar to business writing - in any correspondence you need to put your hard request in the first sentence after your introductory salutation. Be very explicit what you need and the following paragraph should provide details that expand on it, enabling strategies. Lastly, justification or selling if warranted. The five C's also help: Clear, concise, correct, courteous and considerate.