Airtel Bharti - My money is been looted

Dear Concern,

We were a Tata Docomo post paid connection holder and our respective phone number is **********. We have given a request for porting this number from Docomo to Airtel in this process we have been highly cheated following is the whole story.
*.One of the Airtel representative came to our house and collected rupees *** along with the KYC Documents of my father Gopalakrishnan M. Then we waited for a week it did not happen again he asked to give KYC then we again gave the same. After a week he said number is ported to Airtel and it is a pre paid and we can start use it after doing first recharge. Then we done recharge for three month after three months our out going call got disconnected when we enquired in customer care they said it is not pre paid it is post paid connection and there is outstanding of *** that needs to be paid to start the outgoing we still went to an out let of Airtel which is situated in Mettupalayam road Thudiyalur and paid *** even after paying that the outgoing was not activated for about one month. Then again we have complaint in Airtel social media via twitter they are daily calling me asking to explain me the issue every time I explained the story they are saying that they will come back but no body calls me back with solutions . So I will again tweet back and again they will call me again same story will continue but no reselution happens. As per the Airtel representative when we recharge post paid connection the recharge will get fail only but we have spent about **** rupees to do recharge and every time the recharge was successful and we have shared all the transaction number and snapshot to social media team and they promised they will assign a case manager for my complaint and if those recharges were really happened we will arrange for refund that also not happened.
Then they asked to visit same outlet and collect a new sim we again went to same outlet they again collected *** amount saying again we have outstanding we said last one month outgoing was stopped still why do we have to pay they again forcefully collected money and said they have converted sim to prepaid . After that again they collected *** for pre paid recharge for one month then again they are saying validity is just for * days and again out going stopped now totally we have spent **** rupees still no use we are brutally cheated.
My father is ** yr old person and I am a physically challenged person we are going to sue a case in case you are also not helping us.
.My contact number ********** name Santhosh please call me in case you need any proof

Thanks and Regards
Santhosh G
**********