The mytaxi Promotional Code “arnotts10” received in the Wonder Card Member email is valid for first-time users of mytaxi app only. In order to use the Promotional Code arnotts10, you must be a new user, i.e. a new account with no prior mytaxi trips and paying with credit/debit card. Simply download the app for Android or iOS, register an account and add a credit/debit card. Finally, enter the code arnotts10 via the profile section of the app, and pay your fare by card for the discount to apply. For more information, visit