Re: Credit Notes

We received a credit note from a supplier and created it in MYOB.

It was applied to a purchase before I realized that the dollar value of the credit was not correct.  

I selected the PO, selected history, selected the incorrect credit note and deleted the Return/credits entry of the credit note that had been applied to the purchase. 

I expected that the incorrect credit note would re appear in the purhcases returns and credits tab where I could delete it or amend it.  But it does not. 

Also, although thjs credit note no longer appears in the history of the purchase, the total value owing to the supplier still includes this incorrect credit note i.e total showing includes the deleted applied credit and therefore is incorrect and subsequently total owing is showing less than it should by the value of the incorrect credit note.  I have done a new credit note but cant apply it or the value of the outstanding to the supplier will be reduced further....   

I have tried exiting tht particular supplier in pay bills and changeing supplier and then going back, but total value owing on the PO is not corrected.  I tried exiting AccountRight altogether and returning the pay bills, but the total amount owing to the supplier is still incorrect.  

Is there a re indexing function or similar that will correct this ?