Why does the information displayed on the reader vanish too quickly for me to read it?

The information showing your card balance, and the amount deducted for your journey, will be displayed for as long as you hold your card to the reader, so hold it up for longer if you want to check that information. However, some of the new card readers on railway station barriers do not display any information about the status of the card.

You can also use a Myki Card Vending Machine or a Myki Check (blue-colured) machine to find out the status of your card.