Airtel — broadband installation request

I applied for a new airtel xstram fibernet broadband connection. Got call from airtel team (Phone no [protected]) on 16 march 2020 around 11.55 am and i was told to do payment of rs. 2828 against the new connection and i was assured of the installation on the same day by 6.30 pm. I did full payment on the same day by around 2.30 pm. However i told the concerned team that please look for the feasibility of the connection in my area then i will make the payment. But the answer i got from airtel executive that 100% feasibility is there without doing any on-site validation in person. I kept calling continuously and no body used to respond at all. My call was ignored daily and installation work is still pending. Called again on 17th march, i was told same thing that it will be installed in 20 minutes then by 3pm then by 6 pm. I was lied continuously. Same thing happened on 18th, 19th, even still it is pending. Same day by field staff i was informed that there is no fibernet feasibility in your area. This is very disgusting. First of all no proper response, no proper time given, and it was almost 4 days installation had not been done. Phone is not picked by concerned staff.
Fed up with your service i have applied for full refund. Til now its almost 20 days over. I didn't get refund.
Requesting you to refund immediately.
Mb no [protected]
Broadband caf no - [protected]
Txn id :[protected] of rs : 2828/-

Please refund my money as soon as possible.