Tata Sky Broadband — not delivering on their promise

Address:	E/5, Chitrapur CHSL, TPS III, 27th Road, Bandra West, Mumbai City, Maharashtra, 400050
Website:	na

I have applied for a new tatasky broadband connection on sept 20, 2019. The representative promised that i would get the connection in 15 days.
I called up their toll free no. And contacted their appellate to enquire about my connection.
Sadly, no one has been able to provide any satisfactory answer nor were they able to direct me to the person/ dept. Concerned where i could take this matter up.
For a company of such repute, their customer service is woeful!