You're offering a VPN service with an exit point in Australia. You're also offering unlimited bandwidth in your plans.

a) You claim it is anonymous however you (or your providers, do they know you're running this?) are obligated to record appropriate identification information as part of the Australian Telecommunications Act (and it's associated Interception ones). How will you address this when receiving an information requests from the Australian Federal Police?
b) Bandwidth in Australia is obscenely expensive by comparison to essentially everyone else. You're either offering this service with a poorly structure business plan or overselling your bandwidth from your exit points calling into question the viability of the platform for VPN services. Do you oversell bandwidth?

Stuart