My last cruise, we pre-purchased 2 of the 3 packs. They were playing twice on our cruise, so our intention was to use one set each day. When I gave my card, they automatically pulled us up for all six. After I explained, they reloaded one set to my husband's card. You cannot buy the 3-pack deal and split those 3 up, but can by more than one set and use on different days. We found the next time it was easier to buy one set on my card and one on his so they did not try and use all 6 at once. We just swiped one card for one session and the other for the next. When you prepurchase, you pick the person you are buying for just like dining or shore excursions. Hope this helps!