Avast Purchase Version Problems...

hello Guys,
I have the Purchase Version (Avast One), now i changed the PC,new Installation Avast One…only the free Version works,i
found not my Purchase Version (Code) under my Orders on Site Avast.com…i contacted the Support,no Answer >:(
What can i do? Nothing… :frowning:

https://support.avast.com/en-ww/article/Activate-One