Dependant on my lookup, the overall HDB hotline is 1800-225-5432 . It is just a Department Business Services Line that operates on weekdays from 8:00 AM to 5:00 PM. In addition, you'll find other Speak to figures for distinct companies: * HDB Key Line: 6490-1111 (for normal enquiries, weekdays eight:30 https://zalmayo887jaq6.wiki-promo.com/user