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Re: Formal Notice — Overdue Invoice —

To whom it may concern,

This letter serves as formal notice that Invoice —, issued on — for $0.00, remains unpaid and is now 0 days overdue.

Immediate payment of the full amount is required. Please remit payment no later than —. If payment has already been sent, please disregard this notice and contact me directly so we can reconcile our records.

Failure to remit payment by the above date may result in further collection action.