Thanks for the advice. What sort of research do you suggest? I haven't been able to find any information online at all, which is why I called DIBP. Her answer was more detailed, but I abbreviated it (she listed things i could provide as evidence, such as what I plan to do while in Australia, letters from friends whom I will be staying with and so forth. Unfortunately I don't own property or have a job offer back in the UK, so it's harder to come up with evidence that shows I have links to my home country and will be going back...). I'm not sure what else I can do other than provide as much evidence as possible and hope for the best. I have asked my university for a letter stating that I am graduating and giving the dates of the ceremony, so I hope that will help. It seems common for universities to advise international students who want to stay for graduation to get a tourist visa, so it seems like that should be a legitimate reason for them to grant it. I would welcome any advice though.