[QLD, NSW, SA] 3x US $1 off @ Lime
Get 3 x $1 off at Lime Scooter/Bike. Code works for new and existing users and I believe it's actually $1 US but I could be wrong. Also, no idea when this promotion might expire so hurry and add to your account ASAP! After you've added the code, you get two weeks until they expire in your account.
Credit to Reddit
Edit: I can confirm that the discount is in US dollars and applies to unlock & time charges! It works out to be $1.41 off per use.