kerry Cha
The tripl planner displays prices assuming that you have the Half Fare Card. It does this because most regular public transport users here have that card.
Near the top of the page displaying the search result there is a box that says “Price Display: Half Fare Travel Card”. Click that and change to full price to see the prices you pay without the HFC.
Note that you are not buying a reservation, but a ticket. A reservation is separate, not really needed, and always 5,-