Hi JAKING
Is the payment related to a specific suppliers bill that you have created? If it is, record the bill payment manually, by selecting make payment on the bill, and amend the 'payment date' to the date that the amount is credited to your account and amend the amount in the 'Amount' field to what was actually paid > in the banking section select the transaction > select find match, you may have to amend the date range, and match it to the payment.