Bottom line: my order with licensetom yielded a working WIN 11 PRO.
I received the information bearing the ordered license key very soon after placing the order for a WIN 11 PRO code.
Today, approx 35 days after receipt, I tried to use the key in a new instance of WINDOWS 11 HOME.
The key was not accepted for "change Activation key" in settings/system in my newly established Windows 11 computer.
(My windows installation got me HOME rather than the PRO for which the Installation Media USB was created)
I sent to licensetom a whine about the failure to accept my windows installation.
I had noticed in the original email that there was an offer that in case of failure, to supply a key specifically for upgrade from HOME to PRO: just reply to the first email with a request for an upgrade-oriented key.
Pretty soon after my whine about needing a suitable-for-upgrade key, he replied with a different code: this he said to use in uprading HOME to PRO, and he included instructions.(always a good thing for a novice to see)
That second key worked without glitch: now I have 11 PRO in good working order.
Oh, the joy !!
