NordVPN - up to 75% off with Promo Code
1-year plan: $83.88 billed annually (save 41%)
2-year plan: $95.75 billed every 2 years (save 66%)
3-year plan + 1 month free: $107.55 billed every 3 years (save 75%)
All prices are in USD and location set to Australia.
I think conversion rate works out to be different among banks so best to do the math for yourself.