AVG TuneUp problem

AVG Performance
1 
Hi.
I cannot activate AVG TuneUp for an existing account. An internal error is reported. I have an activation key, I tried both through the browser and through the application.
2

Hello Maxim.
We regret for the inconvenience caused. I've sent an email, please confirm the activation code for AVG TuneUp in a reply to that email.

3

Hello Maxim.
We regret for the inconvenience caused. I've sent an email, please confirm the activation code for AVG TuneUp in a reply to that email.