I ve paid for Tune Up but till now : nothing happened

Hello Arie,
Sorry to hear this. Please be informed that there is no specific email address to contact AVG Customer Care. And I couldn't find any active AVG subscriptions under your email address. So please contact our sales team at https://support.avg.com/support_sales_chat . They will help you to locate your account and help you further.
Thank you.

i ve paid for Tune Up but till now : nothing happened.

Is there no emailaddress or helpdesk? 

Hello Arie,
Sorry to hear this. Please be informed that there is no specific email address to contact AVG Customer Care. And I couldn't find any active AVG subscriptions under your email address. So please contact our sales team at https://support.avg.com/support_sales_chat . They will help you to locate your account and help you further.
Thank you.