I have an invoice which the customer is paying in installments, so far they have made 4x £700 payments, but one of the payments was somehow duplicated in the bank feed. As the payments are locked by a VAT return, what is the correct method to correct this?
Hello @Mark_Manning
If an invoice/payment is vat locked you would have to reverse it
You would credit the invoice and refund the credit note (to reverse the payment).