Not every visa application is successful. The merit review refers to the process of appealing the unfavourable decisions made to refuse visa applications.
Not every refused visa is merit reviewable. In general, most visa applications made outside Australia cannot be reviewed and most visa applications made while the applicants are in Australia are merit reviewable. Usually, the visa refusal letter clearly states whether or not the decision made to refused the visa can or cannot be reviewed by the Administrative Appeal Tribunal (AAT). When you appeal a decision, the AAT may or may not change the initial decision made on the application. It may also refer the case back to the Immigration for reconsideration.
Our experienced Registered Migration Agents can advise you on the appeal process, your prospect to succeed, prepare the legal submission and represent you with the Administrative Appeal Tribunal (AAT).