Disrespectful staff and unacceptable service

Last night I went to Spec Savers in Canal Walk in search of a new frame of spectacles of course, prior to this I received an SMS that the brand was having a promotion - therefore I decided to see the selection of brands and frames which they had. Upon my arrival NO ONE greeted or offered assistance and just stared while chatting among themselves. After 5 minutes of waiting I requested assistance from a woman by the name of Nicky. I explained to her that I had seen a frame at another eye store in the centre, before proceeding to open the locks so I could try on frames she asked me why I didn't bother to purchase at the other store and why I came to then, but with so much attitude. Then she unlocked a cabinet and walked away to HELP ANOTHER CUSTOMER and completely ignored me, and while I was waiting she just continued assisting the other consumer. Her attitude was extremely terrible and I asked someone else to help me and automatically I exclaimed that what she had done was unprofessional and as a consumer I was told to wait. Eventually I walked away because I waited for another 10 minutes before receiving assistance. For an award winning brand, they are ****. Bitterly disappointed.