Overpaid supplier refunded

Hi

So far I haven't found any previous notes that fit my situation.

We double paid a creditor in March.  I was unable to get the refund from the supplier before the end of the month.

I created a 1cent invoice to off set the payment against as there were no more invoices to off set it against.

But now in April we have received the refund and I can't process the refund from the Returns & Debits option Receive Refund, because the amount is 1c difference.

Does anyone have any ideas on how to solve this problem.

Thanks

Tash

NZ