sorry my bad I have the wrong reflex to often use "..." I put it mainly to say that I saw no other reason and that I wondered which one could produce your hesitation on the validity of the key but now I found one myself (don't know if the key is regional locked) in addition I was confronted there not long ago (I of course accepted the deletion ^^) I prefer to try my luck for nothing than not to try (to win you have to play XD)
on the other hand be careful with the copy glue I came across a gift or the copy had malfunctioned and the key had been pasted in the description.
have a good day and thanks again for chance