If you've received a PCN, the simplest and quickest way is to pay it online today, you’ll pay a discounted amount when you pay in the given time period.
You can also pay using debit/ credit card by telephoning 0333 800 0107
You can send a cheque (including the PCN number found on your penalty notice with prefix NJ) made payable to the London Borough of Hounslow.
London Borough of Hounslow parking services
PO Box 211