This is a real nail biter - and still more than 24 hours to go!
TIP:
Create a Facebook Event and invite your Facebook friends to it. You can choose specific friends to invite, you don't have to invite all your FB friends, just the ones you think would be likely to vote if they knew of this fundraising opportunity. The event can be public, accessible to friends of friends or 'invite-only' (i.e. private).
You can call the event something like "Help ME/CFS Australia with One Mouse Quick Click". And then link to the ME/CFS Australia logo (the voting link) and describe briefly what they need to do. An advantage of creating a Facebook event is that when you invite people to it, they will receive a notification saying you invited them to your event so they would become aware of the contest, even if they don't accept the invitation.