Life Insurance Corporation of India [LIC] — non payment of annuity

Dear sir,
Master policy no.[protected] : master policy holder sci employees superannuation trust.
This is with regards to monthly annuity payable to me for the month of september 2018. Lic pension group scheme without any notice stopped the payment. I to contact lic customer zone mumbai to obtain the e mail id of the concerned department i. E pgs. [protected]@licindia.com. It took several mails and reminders before i was told that payment not done because life certificate not sent. On submitting my life certificate which remain unacknowledged for several days was finally acknowledged yesterday with intimation that the payment will now be done on 3rd october only. This is totally unacceptable in the first instance they failed to send me a notice to up date my life certificate and now they want me to wait another 2 weeks before making the payment. I request you to kindly take this matter with appropriate authority under intimation to me.
Best regards
Bikash chaudhury