Depending on my search, the overall HDB hotline is 1800-225-5432 . It's a Branch Office Company Line that operates on weekdays from eight:00 AM to 5:00 PM. Moreover, you'll find other contact quantities for specific services: * HDB Primary Line: 6490-1111 (for normal enquiries, weekdays eight:30 AM - 5:00 PM) https://actorv853scl3.wiki-jp.com/user