Virgin active ******* and arrogant staff

Yesterday I called Virgin active Waterstone to tell them that I am trying to convince my sister to join me at gym and whether it would be possible for me to bring her with me for a session so she could get a feel for it. When I called a gentle man answered and assured me that she can definitely join me for a session as Virgin active offer one complimentary access to non members! I even asked him if she could join me in a class as he assured me yes. So I arrive at Virgin active waterstone in the afternoon and they refuse to let my sister in. They tell me no there is no such thing as a complimentary access and that I have to pay R180 for her as a day pass. I argue that I already confirmed this but they were adamant I have to pay! R180 is more than my entire month subscription. To avoid my sister being embarrassed any further I paid the entry but I am highly ****ed off that I had to pay after explicitly calling in beforehand to ensure this did not happen!!!! I have been ********** and my sister refuses to sign up with Virgin now as her first experience was already that of a unwilling and arrogant service very happy to rip you off!