I don't understand the instructions.  It is already a vendor credit.  It says to "Select the Credit radio button to change the transaction type to credit".  It already is a credit, so I'm not changing anything.

Then it says "Change the transaction back to credit by selecting the Credit radio button". Again, it already is a credit.  I still haven't done anything to the transaction/credit.  What am I missing?

Also I understand that the instructions are to remove a credit from a bill.  I am also wanting to know how to determine what credits are being applied to what invoices.