No, it is not necessary. You may “walk-in” during our office time (Mon-Fri, 8.00 to 15.30) or our Saturday extended service (9.00am-11.30am). However, you may have to wait for the clients with appointment first and it is very difficult to predict your waiting time.
So it is strongly recommended to make an appointment before visiting us.
More information: How to make an appointment online