Rena Chong

Paid $7.50 for this large ice coffee. As you can see, it is barely half filled. The shop lady said that the reason for this is because the coffee is extra strong and it has to be melted down with the ice. And that she shakes it to create the foam to make it extra creamy?

It does not really make sense to me, what if I want to drink the coffee right now and not wait an hour for all the ice to melt?