It's very hard to say without subscribing to your website and sending coins, how much exactly I get from you for 1 coin in AUD at any given time.

All sites that buy coins in AU basically say it on the first page, like $1234 + 5% and do not require any subscription, you just fill in your bank details, get a quote - before sending coins - and then send coins if you're happy.

Your service for selling coins seem to be very unclear and unnecessarily complicated.