Cheap Starbucks frappuccinos

Twice this week I've gotten discounts on my Caramel frappuccinos. On Tuesday I got one for 2.30. It should be regularly price at 3.30. I got a much better discount today. I got the a great frapp for 1.50. It had tons of caramel and whip cream. It was wonderful and a nice refreshing drink after working on my diss today. The thing is I didn't know either one of the people who gave me the discount. They both seem to know what they were doing so I don't they were new and just made a mistake.

Thank you starbucks people who gave me a discount.