A Loan app harassing me with name of legal actions

Can I know about ECS? I was applying for a loan using an app. But I didn't submit any ECS mandate services. I applied for a loan of between 10,000 and 2,000 rupees. That time, the loan status was failed and showed errors. They sent a notice of an ECS bounce. What's it. I did not receive my applied amount. When I used this app, it hacked my mobile. Then I can't control my device, and it automatically switches off. The last time I saw the loan application status, it failed. Why did I receive any amount without any further discussion? Why does this app send money without any further discussion?But I am not able to pay. Because I have no money now. I told many times to stashfin service representative .When I have money, I will pay. I am preparing to obtain a job interview presently. Please kindly do not disturb me by phone again and again.But they are continuously harassing me.Also stashfin app steel my private personal information repeatedly theft me with name of criminal case against Me When I applied for a loan from the Stashfin app, I saw I was not eligible for a loan, and after that, the Stashfin agent continued to call me and misbehave with me, still sending me messages to pay the loan dues, but I that time i showed that there were credit line code errors (LOC_001). They continuously blackmail me.Then I also complain about how StashFin customer support is not getting any appropriate notification about the loan application errors. On the Stashfin app, I found a transfer error when I tried to transfer funds in my account, showing error codes 101 and 301.I have never received it, despite the fact that I required 10, 000 rupees. That time, no one helped me get a loan. But your agent is calling me again and again and demanding payment of the loan. But I didn't receive the required amount. Why does your loan app send un-required amounts without any notice, loan sanction letters, or loan confirmation letters?