HDB's dedicated hotline for **carpark enforcement** is **1800-338-6622**. This is the 24-hour hotline principally for reporting illegal parking in HDB carparks and service roadways. You may as well report unlawful parking with the OneService Application. For normal enquiries about period parking, you website are able to contact the leading HDB Branch Service Line at **1800-225-5432**, which operates during common Place of work several hours. This variety handles questions about time parking programs, renewals, as well as other related administrative issues. It's important to implement the correct selection on your particular difficulty to be sure a faster reaction.