Mobikwik — Fraud activity In my MobiKwik wallet

I continuously received calls and messages from which seemed like official Mobikwik number. I ignored for over a month and then one day I took the call, it said that your account is vulnerable and that you will receive an OTP to secure your account or something along those lines. I entered the OTP in the app. Then all of a sudden 2300 rupees got deducted from my wallet which had a cap of 5000. I instantly reported and raised a ticket. After that my account got disabled and I was unable to login to my account. Its been almost a month and I haven’t received any reply to the ticket I raised. I tried reaching to the customer care but to no avail. Someone from Mobikwik called me and he enabled my account. Now some others are calling me from Mobikwik and are talking very rudely.