[Resolved]  HDFC Bank — fastag

I had applied for fastag in nov 2019, but did not get the fastag rfid for vehicle. Instead, i received messages indicating that my fastag rfid is in use at toll gates in tamilnadu and karnataka. I gave numerous complaints via hdfc toll free number to cancel my fastag and refund the amount of 500 rs which was misused.
As of date february 2020, the issue has not been resolved. Hdfc sent me a cheque for 40 rs instead of 500.
They have no info how my rfid was misused and made no efforts to refund my money.
I strongly believe that either hdfc employee or the courier company thru which my fastag rfid was sent is involved in this fraud and has misused customer's trust and money.