I emailed Starbucks Corporate to complain about my unpleasant experience:
Hi. I ordered a mint mocha from the cashier. I had to repeat myself a few times because the cashier (male) did nothing but stare at the girls behind me. After I ordered, I sat down. I waited for 5 minutes. The cashier gives the girls a free coffee, and talks to them. When I thought he had finished my mint mocha, he gives it to the girls because apparently they ordered a mint mocha too. I wait another 5 minutes before this guy gives me my mint mocha. This guy gives the girls a free coffee and a mint mocha before I got mine, even though I was ahead of those girls.
I received this response:
I have not yet received my coupons for free Starbucks drinks, but I think I will soon.