How To Write A Polite Reminder Letter . Sample reminder email to boss for meeting format 1 sub: This ensures that you’re sending a friendly reminder for payment. 50 Polite Reminder Email Samples & Templates ᐅ TemplateLab from templatelab.com Saying i would be grateful if you took a moment to look into it is something you should have said in the first email, and is redundant at this point. Your payment reminder letter should end with a nice close. Explain that you are a phd student and that you need an accepted paper for your graduation.