One punch for every paid visit, whatever you booked, and a full card earns a free wash, dry and chain clean, which is the hundred and twenty rufiyaa visit.
The card lives here, filed under the bike's registration number, so losing the paper one in your pocket costs you nothing. Ask at the bench and we will read out where you are.
Punches sit against the bike rather than against you, which matters when you sell it: the punches stay with the bike and the new owner gets them. We decided that was simpler than arguing about it, and twice now it has helped somebody sell.