5 free invoice-dispute email templates.

When to send

When accounts payable says "no PO on file"

Subject line

Re: Invoice {{invoiceNo}} — PO needed to release payment

Body

Hi {{firstName}},

Thanks for the heads-up that invoice {{invoiceNo}} is on hold pending a PO.

Could you confirm whether the PO exists on your side and share it back to me? If a PO wasn't raised internally for this work, I'd appreciate the chance to send through a credit note for any time we worked outside the agreed scope — and I'll make sure future invoices include the PO on the invoice itself so this doesn't happen again.

If you'd like to send through the PO today, I can confirm receipt and arrange for the invoice to be re-released to your accounts payable team within an hour.

Best,
{{yourName}}

When to send

When the customer says the amount does not match the agreement

Subject line

Re: Invoice {{invoiceNo}} — amount discrepancy

Body

Hi {{firstName}},

Thanks for flagging the amount question on invoice {{invoiceNo}}. The invoice was issued for {{oursAmount}} based on the {{referenceDoc}} we agreed on {{agreedDate}} — I've attached a copy for your reference.

If your team has a different record of the agreed value, could you share that with me so we can reconcile? I'll hold the invoice in dispute status until we've both signed off on the figure, then issue a credit note and re-invoice if needed.

Best,
{{yourName}}

When to send

When AP claims the invoice was never received

Subject line

Re: Invoice {{invoiceNo}} — confirming receipt on your end

Body

Hi {{firstName}},

Thanks for letting me know invoice {{invoiceNo}} didn't reach your accounts payable team. The invoice was sent on {{issuedDate}} from our billing system to {{theirEmail}} — could you confirm whether that is the correct address for AP?

If not, I'll update our records and re-send the invoice to the right contact today. If yes, it's possible the email was caught in a spam filter — happy to send a PDF copy directly to whoever needs it for processing.

Best,
{{yourName}}

When to send

When customer says the entity name or address on the invoice is wrong

Subject line

Re: Invoice {{invoiceNo}} — billing details update

Body

Hi {{firstName}},

Thanks for the updated billing details. I'll reissue invoice {{invoiceNo}} today with the right entity name, address, and any tax IDs you need on there — could you send through the official "bill to" details so I get this right the first time?

I'll mark the original invoice as void in our system at the same time so there is no confusion on your AP side. The new invoice will land in your inbox within an hour.

Best,
{{yourName}}

When to send

When customer disputes the rate itself, not the amount

Subject line

Re: Invoice {{invoiceNo}} — pricing alignment

Body

Hi {{firstName}},

Appreciate you raising the pricing question on invoice {{invoiceNo}}. The {{lineItem}} line on this invoice reflects the {{rateType}} rate we agreed in {{referenceDoc}} on {{agreedDate}} — I've attached that document here for your records.

If the rate we billed is different from what your side expects, I'd like to understand the gap before either re-invoicing or issuing a credit note. Could you share the rate sheet or contract reference you're working from, and I'll reconcile?

Either way, I'll keep the invoice paused while we sort the rates out, so no chasing on your end until we agree on the number.

Best,
{{yourName}}