Now I see what happened, though I’m not sure how it happened.
This time that I bought the software, again being the second time, I used my current Email and my wife’s card. I was expecting the registration replies to go to the account I used for the purchase. Instead, they’ve been going to my old email address, and they are still using the name of the first person who helped me buy VorpX, all those years ago.
I went and checked my other email and all of the replies are there, just wrong email, wrong name of purchaser. :P