FIRST10
Found this old code marked as expired however it works for me in the app and gives me $10 credit, credit expires in 28 days.
Not sure if it's limited to only new accounts or maybe just accounts that haven't used this code before.
If you are a new user you can also use the referral code below to get 3x free unlocks.
It might apply to all accounts that haven’t used it before as I was able to use it even though my first ride was at the end of Feb.