Vodacom Monopolize a service and can't deliver

In the new Sandown complex Evotel laid the original fibre. Subsequently, Vodacom has bought them out and leaving Vodacom as the only supplier in the area. This means that I can only have internet through vodacom. On Monday I contacted them and ask them for a update to which I was promised a update later the day. No update. The following day I email again ********** try to call to hear no update. Friday only do they tell me that they will not be abke to helping me this year. This is totally unacceptable as I am having to do all my office work with mobile data which is extremely costly. Worst of all there is a vodacom person on site in our complex. Vodacom please do not take on work if you cannot keep up which leads to huge expenses to your customers.