Modèle de lettre-type (anglais) - Relance pour impayé (proposition de délai)

Dear [Mr or Mrs or Sirs], Furthering your request, we agreed, in our letter of [date], to allow you to settle the outstanding balance of [montant] on account [références] on [date]. We made it clear that if payment was not made at that date, we would have no choice but to refer the case to our solicitors for collection. We regret to note settlement was not made on [date] and draw your attention to this point. If we have not received your payment by [date], we will immediately undertake legal action to recover this debt. We trust that you will now attend to this matter and look forward to receiving your remittance. Yours sincerely [votre nom] [votre fonction]