[Resolved]  StashFin — repayment issue

I had taken a loan of 9000 due to personal reasons I couldn't pay it on time, I agreed to pay with interest when I tried to pay through the I was unable to pay as I was not getting the dash board. o repay and it is still today showing it as your application is submitted, we will get back to you. I tried calling customer care but they could not resolve the issue. Then I tried through the link which was sent to my mail saying that I have to pay along with the interest when I tried paying through that link it took only the 9800. Is it my fault? And now I am getting messages that I have to remaining balance and I am the defaulter. How is it fair and when I am trying to post the review in google it is not possible. And now I am getting messages that I should pay interest on the interest how dare it is? If they have faults in their payment options they should make it proper and now they are telling that my name will be in black list in CIBIL. There should be some ethics. And they are sending a number to contact which is not all existing. They don't have any mail ID to contact. And the customer care number which we get through their website will not connect properly.
Please concerned officers should resolve my issue soon. Or else I need to go for the consumer court.