Bajaj Finserv — ecs not updated

While purchasing with bajaj emi card through online site like flipkart & amazon. Otp not generating during transaction. Instead of otp fresh nachupdate required. Msg coming to registered mobile no. So called to bajaj finserv customer care & as per them the following documents submitted to nearest bajaj finserv, patna
1. Cancelled cheque. -01no.
2. Address proof.-01no.
3. I-d proof.-01no.
4. Ecs mandate form -04nos.
In the month of december 2017.
2 r 3 times visted bajaj finserv patna. For get the status of the nach update.
But whenever im visitng there they are saying under process & msg will come once they udpate.
Now almost 4 months gone. Still pending.

Contact no [protected]
Sudhir jhunjhunwala