Following your request to postpone submission of your final report, I am writing to you to inform you of the Board's decision. Your request was discussed in detail in their latest meeting and rejected on the following grounds:
Thank you for your request for extension of payment. Since our statement has now been rendered for the third time, I must disappoint you. There can be no question of any further extension.
Please settle your account at your earliest convenience.
Would you please settle the overdue balance of your account before 1 May / the 1st of May.
We must insist that you settle the outstanding amount without further delay.
If your remittance does not reach us before … we will be compelled to seek legal advice.
We set great store on preserving good business relations with your firm, but you will understand that no other course of action was left to us.
Even though your request was not granted on this occasion, I would invite you to try again at some later stage.