Add/stack licenses

I purchased and activated a 3 PC/1yr license, I then received as a gift from a friend a 3PC/2year card.
I haven’t activated the new license key yet, as I was wondering if it is possible to add this license to my current 1 year license to extend my current license.

Thank you.

You’ll need to contact Avast:
Sales - Orders & Renewals https://www.avast.com/faq.php?article=AVKB24#artTitle