Looking at the demo of their portal it says that if
a buyer has a mastercard they will be redirected to their
portal before clsoing the sale.
On the first portal page they see they will list all your
other URL's so the buyer can add them also to buy.
(the only show others site if they serach for something)
Now - I have 3 URL's that is using the same members area.
Maybe they will buy a membership to all them
