There's no public information on a specific "hdb suggestions type 1k 28" as this isn't a typical HDB identifier. Nevertheless, HDB offers a number of channels for feedback. The main process is in the "Produce to Us" e-opinions kind within the HDB Web site. This form allows you to post issues or opinions, read more and HDB will react as quickly as possible. For specific challenges as part of your neighborhood, like cleanliness or routine maintenance challenges, the LifeSG app and OneService App are encouraged because they direct feed-back on the pertinent authorities. HDB also has a temporary Making Provider Centre (BSC) for new flats to take care of rectification requests in the 1-12 months Defects Liability Interval. For normal inquiries, you'll be able to contact the HDB Department Support Line at 1800-225-5432.