HP India — I have no received in my email id activation link

Respected sir
I am consumer of hp gas pawan gramin vitarak in etapalli dist chandrapur maharashtra.. There is a on line gas-refile booking facility, to this to create gmail account. So i created gmail account for booking gas refile, but it is not activated. There is a message to me it follows as

We have sent you the activation mail on emailid : [protected]@gmail.com.
Click send button to resend the activation mail.
But they haven't sent me the activation mail on my email id cited above. So please rectify my problem as early as possible.