In recommendations they have given only number that how many people download it
https://my.avast.com/#recommendations
"Your Invitation Status
Once a friend installs avast! via the link above and starts using it, a credit is counted toward your avast! Account. Credit is counted and displayed on the avast! Account with a few hours delay. If you reach the needed number of friends, you can download your free Internet Security license."
But i need more details about the person who download it and instal it using my link. Is there any thing or proof about the person?