In the end I am satisifed.The truth as it is:1-Licence for Windows 10 Home didn’t work. Got a refund.2-Licence for Windows 10 Professional didn’t work either. Got another refund.Yes, could have given up and say it’s just a scam. I waited with the money there for some weeks just not giving a f*.3-Upgraded to Windows 11 Home, bought a new licence, and this time it is working!!!So, instead of 20, in the end it costed a bit more. maybe 30eur. But I got it.