Vodacom fibre

On the 10th of November Vodacom phoned me for there fibre service. I accepted there offer taking 4 to 6 weeks. I canceled my previous provider. After how many calls to Vodacom to connect they tell me it will only be at the end of January. The call center assistant told me a supervisor or manager will phone me back. The next assistant told me that he was lying because supervisors or managers wont phone a client back.