There's no general public info on a certain "hdb responses sort 1k 28" as this is simply not a regular HDB identifier. Even so, HDB gives numerous channels for suggestions. The main process is from the "Publish to Us" e-comments form on the HDB Web-site. This way lets you submit https://rylantuuuu.eedblog.com/37340857/hdb-feedback-form-1k-28