Rediff.com India — Email content missing after re-activation of my old email

I needed to access some old emails from rediffmail, so I reactivated this account recently after paying them the fees (as I had not used rediffmail for a long while).

But I've noticed now that the contents of the old emails whichever had attachments are not available (cannot see the contents, recipients & dates / only subject can be seen).

Please help me recover the email contents, as I need to find some data soon.