Reliance Jio Infocomm — reliance jio broadband refund

Address:

Gautam Buddh Nagar, Uttar Pradesh

Not getting my jio broadband refund. Service termination date : on and before 10 august 2017.

Today date : 14 december 2017

Query : customer care always tell refund courier returned back to them.

Checked with security in my society, no courier from jio arrived, didnt even got a call from jio courier person.

Shared new current address on 14th october, 2017 with proof of address.

Same story, courier returned to them.

Shared current address, permanent address with passport, even asked if i can come in person to collect refund cheque.

Get same pre text copy paste reply from jio customer care like we are escalating, re-escalating, feeling sorry, etc.

No resolution done as of today.
Really fed up, want to take them leagally so they understand the importance of hard earned money and customer care should read and reply appropriately customer concern and some pre text email.