Dairy Queen

Its almost 90 degrees outside on the drive thru. My mom is craving for a blizzard. As i ordered on the speaker the one taking the order keep repeating the wrong item. I've been almost shouting yelling there but still they cant hear me. They told me to drive to the next window. I gave my order again. But as i turn around to wait for my order i can hear them laughing and talking about me. He is so impolite and so very unrespectful.