Hi there! LTA will disburse the additional PDR in cash progressively from mid-May, through GIRO or PayNow (NRIC). No application is required. Owners will be notified via SMS when the additional PDR has been credited to their bank accounts.
I am not too sure how long they would take to disburse the Petrol Duty Rebates as it started from mid-May.
I suggest you contact LTA regarding your status. To reach LTA's customer service officers, you can call them at 1800 2255 582 or contact them via www.lta.gov.sg/feedback.