To reconcile your bank account and move the money from the clearing account please use the deposit feature in SAP. The deposit feature can be found under Banking -> Deposits -> Deposit.
The Credit Card tab will show all incoming payments created using a Credit Card. If the payment was created by iPayment the voucher no. will be populated with the transaction reference created by the payment gateway you are using. The transaction reference should allow you to reconcile the payments when the money has been transferred to your bank account.