Cousin posed as ICICI Employed defrauded 18.5Lakhs.

My cousin, who is my fathers's elder brothers son, was working as an ICICI employee, but recently he has lost his job and we had no idea or information. My Dad got retired from the CISF Central Govt. job and they(cousin and his family) knew my Dad had the retirement money, the ex-icici employee(cousin) took money in the name of booking auctioned property for my parents but from other relatives we got to know that they lost our money in bitcoin. Cousin called my parents and said there is a plot in Mysore auctioned by ICICI Bank internally and we must not tell anyone and took money from us via Netbanking and in return sent forged ICICI documents, payment receipts on WhatsApp/Gmail as we live in Bangalore. We verified at the Mysore bank branch found all the documents to be forged from bank, totally he has taken 18.5 lakhs. When we confronted them, still they do not accept that they have done fraud and forgery so that they don't lose their reputation, every month they say there is delay f