My brother Tanishq Verma accidentally tap on an Add on social media and the with the information they offered a job and done all the documentary by themselve and offer some work which is not possible to complete in the given time so my brother didn't touched the file or the work. After 7 days they mailed him and ask for money around 8k and said that a case has been raised against you and you have to pay in 4 hr and after a day they are threatening to give 1.5 lakhs. And many more what should I do to whome I contact please help.