Misrepresentation and Dismissive Attitude

I was promised a contract upgrade offer from a call centre agent and was guided to the nearest branch ( Vodaworld ) for concluding the telecom agreement . When I went through to the consultant the next day , I was informed that the said offer was not valid and I needed to pay more . I then escalated the matter via the Head Office in Waterfall personally , only to be dismissively told that a manager ( Colin Swartz ) had reviewed the call and cannot assist me further . I am totally appalled at the lack of customer service in dealing with my query as a loyal customer of 7/8 years , wherein my request to speak to a manager ( personally ) was not even honoured despite 2 managers being on duty at the said branch . ( viz. Zaheer Vallee & Colin Swartz )