Rediff.com India — Unabated spamming by Rediff News

Dear sir, despite repeated complaints to you and to the Rediff.com I continue to get spam mails from them.
I am not just surprised but shocked at the very poor response of this News Portal which tells the whole world what to do and what not to do, but doesn't practice what it preaches.
Every time I unsubscribe, an option appears ie "If you have any problem unsubscribing, send a mail to: [protected]@rediff.co.in".
I have been regularly writing to them and all that they do is issue a TICKET, and then forget about the whole issue.
Kindly help me in getting Rediff.com off my already tired back.
Today's message is as under:-
You have been unsubscribed
Thank you for spending time on Rediff NewsLetters.
We hope you will return soon
Mails meant for grievance and compliance officer can't be sent as gmial doesn't recognise these email IDs. this means they are a fake company.
Designation: Grievance Officer
Email id: [protected]@rediff-inc.com
Designation: Chief Compliance Officer
Email id: [protected]@rediff-inc.com