Paytm Mobile Solutions — my paytm account vanished suddenly

Paytm account linked with my mobile number is [protected]. I was updating personal details in my paytm and suddenly logged out. Tried logging in again but every time it was showing invalid otp. Tried login using email id. it shows that email id is not registered. Tried calling using IVR, not able to talk to the customer care agent. When entering otp in IVR again it says invalid otp. Not able to open any of the paytm app. Not received any solution yet even after tweeting to them. Worst service. How an active account suddenly disappeared? If any fraud will happen to my account paytm will be responsible for that.