Airtel — new broadband connection I have applied for

Address:

New Delhi, Delhi, 110009

I made a request on airtel website for a new broadband connection
Which was accepted and i received a call back from company to prepare the required documents.
On 26th november 2017 my docs were picked up by mr. Ankit kansal mobile number [protected] saying the connection will be installed in next 48 hrs.
Its 7-12-17 and still i have no clue about it i spoke to same person who took my docs he said i'll ask my boss to call back the boss called up mr. Vijay mobile number [protected] he said i'll check and get back to you in an hour and now no one is responding to my calls.
Cef no. 11117311 is written on my customer enrollment form.