I was very very skeptical about this. But my curiosity won from my suspicion. What's there to loose for just €5? And then there is this Buyer-Protection from Paypal. So with nothing to loose, there it was: a fully working Office 2021 exactly as described in the instructions.
Thank you guys!

Once paid, I received the code in under 1 minute. Just follow the activation guide using their website to get the confirmation code and you should be good to go.

Worked fine after phone activation

Purchased Office 2021 Pro Plus keys for new laptop.
Instructions were very detailed and easy to follow.
Key was sent right away and the phone activation process was simple.

exactly as described, work perfect