Do you think they will lose email address? We can do a little test: create a new mailing address and put it on their website. If phishing offers (or what threats do you expect?) come in, we will know who is to blame. But there is a nuance, it is not known how long this will happen.
I don't think they will lose anything, and I always use temporary alternative email addresses when I am registering for some testing like in this case.Some of my old emails are receiving spam all the time, so for anything new I sign up I use new email address.
I have some internal sources about Ledger Nano S Plus.
Is this the same source that told you about ledger store you ''found'' in Iran? 
I would not pay 119 euros for nono S plus because it's untested, closed source device and I bet it's going to have similar problems like terrible model X.
Double the price for a bit more memory and larger screen is not a good deal in my opinion.