Hi, thank you for your suggestions.
Prior to posting this topic, I was already at a lost as I did
approached 1 tailor, 2 seamstresses and even went to Beach Road's
army market but they were not able to help. Finally, found a 3rd
seamstress whom said I could replace the spoilt zip (single piece
mesuring 125 +/- 2cm long) at Chinatown's wholesale market. I
went there but the zip is so different from the uniform.... :(
How?