migrated to http://wavelet.asia/customer-portal/2011/02/28/reverse-receipt-voucher/

To reverse a receipt voucher is to cancel a receipt, reducing the cashbook to its initial balance.

• Finance > Receipt Voucher > Reverse
  
• Enter the correct Receipt PKID.
• The Receipt Voucher will appear.
  
• Enter descriptive remarks in the space below. Then, click 'Reverse Receipt Now!'