Based on my research, the final HDB hotline is 1800-225-5432 . It is a Department Workplace Support Line that operates on weekdays from 8:00 AM to 5:00 PM. Furthermore, you can find other Get hold of quantities for precise products and services: * HDB Main Line: 6490-1111 (for general enquiries, https://how-to-do-hdb-nomination97566.spintheblog.com/37613490/hdb-town-council-hotline-210-22