Hiya
When AMSA send you a letter inviting you to make orals and medical appointment you choose when you want to go and do it.
Pick a date and send an email to the AMSA City office of your choice requesting orals exam date, they will let you know if it is suitable or will suggest an alternative date.
Also contact Medibank for AMSA medical date. Medibank is a big outfit and do numerous medicals for Australian transport (rail, shipping etc) and immigration medicals.
They are normally quite flexible and will fit you in around your orals date.
IELTS - normally need this to get enough Visa Points (get 10 points for a UK Masters ticket, get 20 points for a good IELTS pass)
Do not underestimate this four part exam. You need good scores on all 4 exam sections or you will not get your Visa point. Look up British Council IELTS on the web. Do your homework and sign up for study module with mock exams and advice.
I think the test was designed as a money spinner as one slip up will cost you dearly in time and expense.
Marks are out of 9 - I put the hard graft in and got Listening 9, reading 8.5, Writing 8.5, Speaking 9 - overall band score of 9.
Even if you get 9 on 3 tests and then slip to 7 on 1 you will not get your full Visa points. Scores of 7 and above gives 10 points, scores of 8 and above gives 20 points.
I needed the scores of 8 and above so was happy to get it out of the way first time round.
Do not take the test lightly as this is the biggest mistake - like any exam there is a system and if you understand the system and work at it you will not be caught out on the day.
All the best.....