AVG installation problem

Hello Mei,
We regret for any inconvenience caused to you. As per our records, we do not see any  registered license number under the email address you used to contact us here. Please chat with one of our technical support team ( http://avgclick.me/AVGtechnical ) to validate the license information, get help with registration and installation of your AVG software.
Thank you.

I already deleted the old antivirus software and tried to install AVG Antivirus supporting 3 PCs for 2 years…
It is my 2nd pc but it says "Your AVG Sales Number has already been registered in our database".
Don't know what else to do. I installed it to my first pc without any problem.

    Hello Mei,
    We regret for any inconvenience caused to you. As per our records, we do not see any  registered license number under the email address you used to contact us here. Please chat with one of our technical support team ( http://avgclick.me/AVGtechnical ) to validate the license information, get help with registration and installation of your AVG software.
    Thank you.