It seems seems like working but not!

I created a custom content type and attache ajax comments module with my content type.

When I go to to my content type node page and add a comment using ajax comment, It seems working fine. I can post, reply and delete comment and its showing very well.

But when I refresh my page, then it goes disappear.

Anyone know about this issue, please guide me to the right path that how to use it...!?