I booked my surgery on my first consultation dAy. Mine was on 24jan and my surgery is on 28 feb at Fitzroy
You mostly talk about why you want it. Different types of implants. You get to try some on and your pc will recommend a surgeon based on your frame etc then you can look at what day you want. It all depends on the surgeons availability. You will also get booked in to see your chosen surgeon too.
You don’t have to put a deposit down or secure a date at your first consultation. Also depends on how eager you want it etc.