Address 1
Address 2
Address 3
Address 4

[Date]

Dear

Thank you for bringing to my attention the queries concerning invoices [ ] and [ ]. These are now being dealt with and you will be contacted very soon with our findings.

Meanwhile, may I ask that you pay the undisputed part of the account which is now overdue amounting to £[ ]. Will you please send your payment to reach me by [date].

I have arranged that, from now on, my colleague [name] will contact you a week before the due date to discuss with you any outstanding queries so that these may be resolved quickly so avoiding overdue payment in future.

Yours sincerely

Credit services manager