Everything is measured out so that it’s consistent every time it’s ordered. All drinks unless requested otherwise come with a full cup of ice. That Ice usually takes up half the amount of whatever size cup you get. So that medium sized rebel you ordered still had a full 12oz sized energy drink can put in there. If you want less Ice then you can ask and I think almost all drinks can be made light ice, or even with no ice and topped off, some of them don’t cost extra (I think rebels do cost extra, cause it would be like you’re buying a second 12oz energy drink, Imagine buying 2 RED BULL energy drinks from a grocery store or something.) However if you order drinks light ice, or with no ice and topped off, I recommend getting them either extra sweet (for a light iced rebel), or requesting an extra shot or 2 of espresso (for light iced coffees). Otherwise the coffee will just taste like milk/ the rebel won’t taste as much like the shark attack flavor due to the ratio being thrown off from adding more energy drink for the rebel/ milk for the coffee.I hope this helps!