By post :
General Post Office 9916
MTR Projects Hotline:During non-office hours or when the lines are busy, incoming calls will be diverted to voice mail system, which callers can leave messages, and hotline staff will follow up as soon as possible.
MTR Projects Hotline Office Hours：Monday to Friday: 8:30am - 6pmSaturday: 8:30am - 1pm
Tung Chung Line Extension Information CentreAddress : No 76 Ma Wan Chung, Tung ChungOpening hours : Tuesdays, Thursdays, Saturdays
10am – 1pm & 2pm – 5pm
Closed on General Holidays