Reminder

• Our accounts department reminds us that invoice no. … is still outstanding.

• We remind you that payment of our invoice no. … is overdue.

• Our invoice no. … has unfortunately not yet been cleared.

• Your account of €20,000 is still outstanding.

Goodwill

• We take it that this omission is due to an oversight.

• Our invoice may have been mislaid. Enclosed please find a copy.