Moto TPSL — moto tpsl refund my amount 8541 for credit card

I have a ICICI bank credit card.
I received a call today ( March 3rd 2018) around 5.30PM saying that my reward points are about to expire and that the points need to be transferred to the card. 8541INR I have lost today.

They already had my card number and other details, and asked me to tell them the code received on my mobile.
I was in middle of something and read the code out loud, thinking it was only related to my reward points.

Then I got the call from the back suspecting of false transaction so we are blocking the card. So, I requested the help of customer care but they are helpless because I have shared the OTP. So they cannot anything about the transaction. They informed to go to nearest police station give the complaint. I have asked them to re-issue the new credit card.

Call from [protected], [protected], [protected]

Please help me how we can refund Money and also to file complaint.