Would you please settle this account at your earliest convenience?
We kindly ask you to settle your account before the end of the month.
Please disregard this reminder if payment has meanwhile been made.
Unfortunately, we must remind you again of your outstanding account of €20,000.
Although it has now been six weeks since we reminded you of your outstanding account of €9,800, we have not yet received your remittance.
Our statement has now been rendered three times. Consequently we insist that you make out the amount of € 12,000 to our bank account no. … at Lloyd's Westminster branch without further delay.
You will understand that failure to settle your account puts us under pressure on the home and foreign markets.
We ask you to look into the reason for the delay.
We urge you to clear the invoice at once.
We trust that you will settle the outstanding amount at once.