Unwilling to help

After reading an article about Benefit Cosmetics Brow Bar on the Cosmopolitan website, the article clearly stating that it is a brow bar and NO appointment is required. Arriving at the Benefit counter, a sales assistant told me to wait a while as the lady who attends to clients regarding eyebrow waxing and tinting is on lunch. After waiting 15 minutes the lady arrives, she further tells me that she can not help me due because I had not made an appointment. I had told her about reading the article. She than told me they are too busy to assist me and there were no other customers at this time also there were two other sales ladies. She made no effort to assist me or offer to help me make an appointment for another time or even apologise for not being able to assist me.