I believe I have submitted all of the required documents. Why was my application refused?
While there is a comprehensive list of documents required for each of the various categories of visa, provision of these documents does not guarantee that a visa will be issued.
Please examine carefully the reasons given for refusing your visa application, and ensure that you address all the issues in your appeal.
The onus is on you to make a convincing case as to why you should be granted a visa, and provide relevant material to support your case.