Dunkin'

I went to the Dunkin Donuts store located in the West Suburban Medical center in Oak Park, IL the morning of April 7th, 2017. When I approached the counter there was no one in line & one worker standing at the counter in the back. She did nothing to acknowledge that I was there, after a few minutes of standing there I asked her if the store was open. I was not rude in the tone I asked. She did not respond. Then after another minutemI asked, "should I come back another time?". She snapped at me, saying "I'm the only one here right now". Without turning to look at me or make eye contact. After a few more minutes, after more customers arrived she did walk over and take my order. She then took the order of the customers after me & served them first before pouring the one coffee I ordered. When she poured my coffee she put it down on the counter again with no eye contact or thank you. Extremely rude & uncalled for- I was nothing but nice in my manner & she was so mean! I will never go to that location again & will avoid any Dunkin if this is the standard of service. I understand if you are busy prepping, but please use basic customer service skills to acknowledge the customer and let them know you will be over in a few minutes.