Receptionist giving clients attitude

My business partners and I made use of the regus stoneridge greenstone offices for our 3hours presentation yesterday... The receptionist had such a horrible attitude and spoke to us in a demeaning tone infront of our own clients... we had trouble connectint our laptop to their monitor and we asked her to come assist.. she came in and arrogantly said there was nothing wrong wth the HDMI cable so it must be our system that is a problem... when we asked her to try see if she can assist us or offer us IT support if they had she said it was not part of her job description and that she doesnt work for Windows... she then stormed out and banged the door. After the presentation we decided to debrief with her manager as I had complained about her attitude before to the same manager Lorna who is the so called area manager... during the debriefing I asked Lorna what she had done to address the issue since there were no changes to her attitude and she said she spoke to Nicola ... but didnt tell Nicola who the complainants were.. I thought to myself how then would The receptionist know what actions to correct if she wasnt given the exact details of the complaint? Clearly this talk never took place!! I then went on to ask Lorna what shel do differently this time since the action taken last time was not effective.. she then got aggetated and said “well.. what would you like me to do ideally?” Its clear that Regus does not train their management staff enough because they dont even know how to discipline their own staff members? We felt very disrespected and undermined by the 2ladies.. they were arrogant and very passive aggressive not to mention the receptionist denied everything infront of her manager and called us confused people, she continued with the same behavior infront of her manager and the manager could not reprimand her .. its clear that she doesnt even respect her boss. Appauling treatment we got for a service we paid for.