Installation gone wrong!!!

I recently wrote a review regarding my services. This was urgently dealt with and thought everything has been sorted (considering the high rating I gave) , but now I am back at point 1. My installation at the premises I now reside at was done on Friday, I then received an sms on Saturday that my line is now active. Guess what? There is no connection, I have been on endless calls and online chats with no assistance. Had I known that the service is nonsense when residing in an estate, I honestly would have opted for a different service provider. Not even one consultant can provide a turnaround time or a satisfactory response during this moment of despair.