We just recently refunding an invoice that was paid in october (closed period) due to two payments being taken, one sent by customer and us billing the customers cc. Refund processed successfully however invoice is still showing as paid in full. Does anyone have any ideas on how to re-open the invoice without opening the october period. Worried if i do, it will make a mess of our numbers. Thoughts?

You retained one payment which makes the invoice Paid status.