Shubh Loan app fraud

I took 4,000 from Shubhloan but I only received 2,400 rupees. It was for 7 days, and before the 7 days were over, I started receiving voice messages on WhatsApp from a Pakistani number saying they have my data and will post pictures on social media to defame me. They said they would call my relatives and my wife also received a call. I was stressed, so I paid 1,800 rupees asking to extend the payment. Even after paying, the app still showed 4,000. When I messaged them, they blocked me. The 4,000 was the EMI due date. I received threatening messages on WhatsApp and SMS, which I also blocked. Now I am not scared at all.