Airtel — connection not installed yet

Hi
I was applied for a new connection (2 times) of airtel with broadband in karol bagh firstly, on 30th november and secondly, on 14/12/17 but connection was not installed yet as more than 15 days already passed. And i was paid installation charge money both the times (500 each).
I cant got a proper response from airtel, when i call airtel customer care or senior member everytime thay saying that connection will be installed in next 2 hours but connection was not installed yet.

Order no. 33892973
Caf no.[protected]
Email id navratan. [protected]@gmail.com

Sent from my iphone