Thanks for the reply. Whenever I go to any member's/ your profile and click the contact here it diplays the following message:
You are not authorized to contact other members currently. Your account must reach some specific reputation level before you can contact others. You may continue posting high quality content which will eventually improve your reputation level in this site.
You may post your queries in the Forum.
And for the messages you have sent reply but I will not get any intimation or alerts that the message have been sent.