Reverse debtor receipt

Hi

I have receipted a debtors payment against the wrong invoices and one was still an order.

I realised when converting the order to an invoice, and saw an amount paid against it.

I have followed instructions from Steven M from 5 years ago to reverse the invoice, refund the

partial payment, selected residual amount to the invoice via apply to sale option.

I actually need to un apply the payment to all invoices, not just payment against the order/invoice.

Reverse Payment is still greyed out.  I have permissions as owner. 

I have unmatched payment in Bank Feeds.

When I recap the transaction - The $1,250.52 is sitting in Customer deposits, the $806.00 in Trade Debtors.  Total $2,056.52 - none of which is applied to correct invoices.

Debtor has two accounts with us, I receipted the wrong account.

What is my next step?