What does the error message on my PAYG electricity meter mean?

Code has already been entered on the meter. The meter doesn’t allow the same code to be entered twice.

The incorrect code has been entered.

The previous 40 or 60 digit top up code purchased was not entered.

The code has been entered incorrectly five times. Wait four minutes until the message clears, then you can re-enter the code.

There was a delay of more than 20 seconds in entering the code. Press the * button and re-enter the code.