Related Clues:
- Reminder with three vowels
- 'Next one's on me!' letters
- Acknowledgment of a debt
- Payback note?
- Initial financial commitment?
- Debt letters, in poker
- Promissory note, so to speak
- Repayment pledge
- One presented for payment
- Written evidence of a debt
- Reminder of a debt
- "Pay ya later" letters
- 20-Down letters
- Broad-tipped pen
- Letters for someone in the red