Accounting for Credit Card Chargebacks

Hi,

We are testing Credit Card Charge back functionality and the accounts are not tallying at the end.The only setup done is to tie Receivables Account to Credit Card Charge back in Setup-Receipts-Receivable Activities. Bottom line is

The invoice amt including the credit card service fee and credit card service fee alone is debited to Receivable acct and credited in the Cash account apart from the original invoice amount displayed.