Clearing Customer TCS amount

Hi All

I have configured the customer TCS process in SAP. For the new customers it is fine. I have few old customer receipts for which the payment is made partial excluding the TCS amount. So the invoices are showing as open items. How can I clear these invoices.

For the invoices for which payment is not done, the updation of TCS is done using report RFWT0010. But how to go with the invoices for which payment is done.