I have been trying to buy one also. Had online chat with Samsung today and they said to contact support but it appear no-one knows anything about this watch..... very strange indeed. It apparently launched in January!!!
Does support look on these threads?
Today, I received a reply through Facebook messenger which I have copied & pasted below:-
…. it appears that it isn't currently available due to a lack of stock. Further to this, we haven't been able to locate any information on if/when it will be available again. We appreciate that this may not be the answer you were hoping for, but we hope it helps to clarify the situation.