Worst customer service. They promised me to give t...

Worst customer service. They promised me to give the connection on 23rd March(morning) but they haven t turned back after multiple request since I had some emergency work. Installation engineer never picks the call, gave false promises. He told me that he ll come in next 30 mins but his answere was it will take another 3 to 5 hours due to heavy work , again he haven t come even after 24 hours. When I tried calling him it says busy after 3-4 rings.. looks like he disconnects the call.. so irresponsible...