Registration Problem

I've installed Bit defender total security 2013 and I tried to activate my bitdefender account, but I couldn't. I've got the actiavation email but no matter how many times I click on it, no matter how many times I resend it to myself (by asking for it) there's not a single clue of activatng my account.So i had given another email id for activation but the problem still remains. Can anyone help me?