Tata Sky India - Fraud has happened

Recently I shifted from one location to another within Bangalore. I called tata sky CC that my box is not working as per the process. I requested for relocation. I cancelled the request because I didn't have the Dish and I asked the CC executive to raise another request with the dish. 
Next day a person came and told that he is from tata sky and he will do the connection. He did everything for which he charged *** Rs. When I asked him for an online transaction he denied and said that payment should be in cash only. So I gave him. He told me s\w upgrade will take * hrs after that it will work but it didn't work even after * hrs. I called him again he came the next day without informing. I was not at home my mom was there he replaces the box saying there is something wrong with the box. Again he asked for *** Rs this time I called tata sky CC ( you can check the recordings). CC executive asked him to provide his supervisor number on which he denied to give and they started arguing on call since my mom was alone at home I couldn't take the risk with this fraud Tata sky technician. So again I paid him *** in cash so that he can leave the house. Now since yesterday again my box is not working and this person is not receiving my call. I have recharged the box already. Everyday *-** Rs are getting deducted from the balance though the box is not working at all.
Then the technician called me and said that he cannot come because he is afraid of a local dealer and if anything happens I have to take the responsibility. I want a full refund of **** Rs. Please take this seriously and make sure your technician will not harm us just because I am complaining against him.
Tata sky id: Subscriber id: **********
Card Id: ************
Fraud technician number: **********