You can write to the help desk and if you fail to receive a response like last time, you can write to me (robert.smith at 9dot9 dot in) and i'll have it sorted out... just make sure you write to the helpdesk first.
Thanks robert for answering.
I've sent a e-mail last night regarding my problem to help@thinkdigit.com with the subject CD/DVD last night but still got no response. checked my inbox now. the e-mail id I used is : rksskr86@yahoo.co.in
So I'm now sending you e-mail. Hope I will get a response at least.
Just sent a mail to you with the subject
By Demand DVD is not Working