When you buy the ILL, it is linked to your ticket (which is how you scan into the ride with your ILL$). So even if you tried to buy another ILL for the same ride on the same day with the same ticket, it won’t let you do that. You can buy one ILL$ per day per person for RSR and for ROTR. It is not 2 ILLs per person per day (ie you can’t buy 2 ILLs for RSR and none of ROTR).