Activating issue with AVG TuneUp - Server is not responding

Hello Copal,
Thank you for contacting AVG Community Support.
We understand your concern regarding activation of AVG Tuneup.
We are really sorry to know this. We'll certainly check and help you out.
As it isn't advised to discuss personal/account related info here, we've sent you an email with further details.Please check your inbox/spam folders to find the email and use it to get back to us.
Thank you and keep us updated.

After entering ACTIVATIONCODE, following message is shown: Server is not responding.
I Already deleted old installation and reinstalled avg TuneUp.  
What is going wrong ?
 

Hello Copal,
Thank you for contacting AVG Community Support.
We understand your concern regarding activation of AVG Tuneup.
We are really sorry to know this. We'll certainly check and help you out.
As it isn't advised to discuss personal/account related info here, we've sent you an email with further details.Please check your inbox/spam folders to find the email and use it to get back to us.
Thank you and keep us updated.