“Can you specify only a few pieces of ice?”
I assume so, my brother always asks for “very little ice”, but myself personally I like a lot of ice. This wouldn’t apply to Starbucks, but so many fast food places have unlimited refills that no one has reason to complain.
Not that that’s going to stop ‘em!
You can get free refills at starbucks for tea and coffee as well if you use one of their cards. I do all the time. Whe I’m out on my motorcycle, I’ll sometimes hit 3 different starbucks during the trip.