只是回答第三个问题
换了护照以后,把相关资料发给ICA,然后他们就会更新系统了。
这是ICA回复我的邮件:
Together with the applicants' new passport bio-data page, please also provide us with clear images of his/her Long-Term Visit Pass card (front) and local sponsor's NRIC so that we may verify and update our records. Please provide the images in jpeg or doc format. The updating is not available on the self-service web-portal.