The National Labor Relations Board issued a complaint against Starbucks ... over accusations that it retaliated against two employees seeking to unionize their store in Phoenix.

... [The complaint] contends that Starbucks issued a written warning to one employee and suspended her, and rejected the scheduling preferences of a second employee, leading to her termination, because the employees supported the union.

... “Today is the first step in holding Starbucks accountable for its unacceptable behavior during the unionizing efforts in our store and stores around the country,” Bill Whitmire, a barista at the store who is involved in the union campaign, said in a statement. “Laila and Alyssa were traumatized, and their hope is that no other partner EVER has to go through what they have gone through.”

... Reggie Borges, a company spokesman, reiterated previous denials of accusations of anti-union activity.