Airtel payment bank and Airtel prepaid - Not adding my Pan card with Bank

Myself Sayan Sekhar Das,an Airtel Payment Bank customer.I am trying to add my pan card to my adhaar and mailed your authority min *-**times from *th Feb to **th Feb.But they are not giving proper explanation and not doing my work.It is almost **-**days to give my documents for Pan updation but get any response.Please take into consideration Sir .
Bank Details-**********