Life Insurance Corporation of India [LIC] — the lic online portal registration is nightmare

I have already an existing lic account but now its telling invalid user id which i was using till last year without any issue. I heard its due to kyc update. But now when i try to re-register always its gives the same error pop-up invalid policy number. What kind of crap is this. There is no proper validation in this site. How can i trust in such kind of portal for the premium payment security.
What could be the solution. Any help on this.
Note : the same policy number without login i am able to pay the premium without any issue.