When an appeal is appropriate
Appeal only if you can address the rejection advisory. Without new information the outcome will not change. Submit within three months of rejection; otherwise make a new application.
Submission, authority and outcome
The main holder, appointed EA or employer acting for the main holder submits the official online form. An EA must attach signed authorisation; this LTVP page refers to authorisation from the candidate. Processing takes about four weeks. MOM emails the outcome to the address in the original application.
Official source
Written independently from official MOM source material.

