I have had a really bad experience today in Nirvan...

I have had a really bad experience today in Nirvana Spa. I have been bullied by a waitress about having a phone call in the facility that I have not been informed neither verbally nor writing or I have not seen a single photo around the facility regarding their no phone call policy. As well as myself, my friend was not briefed either which she was visiting facility more then one time.
I have been treated so badly for something that I am not even aware of it.
I am giving "0" on Human Relationships for bad treatment and giving "0" on professionalism about not displaying your policy properly. And giving another "0" for using low level of stuff that they don't know how to treat customers.