Hello, I am looking to purchase someone's kontakt 6 license. Thanks!
The Buy / Sell / Trade is over here : https://community.native-instruments.com/discussion/18928/kontakt-6#latest
You can buy Kontakt 7 for a reduced price now.
https://www.native-instruments.com/en/catalog/deal-season-2023/
Note that the OP may be looking specifically for Kontakt 6 (which works well) because Kontakt 7 is hot garbage.
I'm selling Kontakt 6.