Problem with adding code

Dear AVG Team!
I have installed trial version of AVG Internet Security will expire soon. Trying to add purchased code I have a message (after accepting the code itself) - Sorry, something went wrong … What is that "something"? Name, Surname, e-mail address, postal code (all is exact as in my account). Any idea? Need more info?

Hi Alexander,

We will help you to resolve the issue.
An e-mail has been sent to you requesting details to assist you further. Please revert to us.

Hi Alexander,

We will help you to resolve the issue.
An e-mail has been sent to you requesting details to assist you further. Please revert to us.