Government Careshield + Eldershield Supplement

I used to be on Eldershield400 and i subscribed to Eldershield Supplement for $800/month coverage The premium was fixed yearly for $X

Last year i was automatically converted to Careshield life. I notice from my CPF statement, i am paying $Y for my careshield life , and still the same $X for the eldershield supplement

In the event of unable to perform 3 ADL , i am told by the Eldershield agent , Government Careshield life pays $600 , and Eldershield supplement now pays only $200. The agent mentioned sticking to the Eldershield supplement is not worthwile , such that i should change to careshield supplement

As a layman , I cannot quite understand i am still paying the same $X premium for the eldershield supplement , but i am now getting only $200 month coverage from eldershield vendor

I have difficulty in finding clear illustration on this combination of "Government Careshield life + Eldershield Supplement from vendor" on both careshield and vendor insurance websites. Even the agent was not able to provide one or some official statement .

I have written to careshield, but they just simply extract information from the Careshield FAQ , and not addressing to the question.

Is the agent correct ? I hope to find some answers here.