Help with credit note

[Tusanim]

My client is making payments using credit card, so i used the method of overpaying the invoice because he wanted to have a credit ,since his credit card has been rejected i must reverse the transaction,when i went back to payments received,only to find that the amount paid is equal to invoice only .i don't know where to find the credit note so that it can be reversed.

[sami]

Go to Sales > 5- Client's Statements > enter the client name and the date range and you should be able to see the transactions on that client.
You can also see the history form the clients list > choose the client and press the History button (this feature is on the new versions)