Hi Yong Foo Loy, thank you for your question. You may submit an appeal here: https://vrl.lta.gov.sg/lta/vrl/action/submitAppeal?FUNCTION_ID=F2201002TT

You may also check out our article for the appeal letter template through this link: https://www.motorist.sg/article/591/appeal-letter-template-for-traffic-fines-and-parking-offences-in-singapore