Sue, if there are multiple owners on an account you can book in different names. For example if the account is under Jane and John Doe, book one room under Owner Jane Doe and the other under Owner John Doe.
My father and brother have the same name (both are owners on the account). If I let the system add the name when I book the reservation (when adding the traveller name (selecting from other owner drop down) the reservations appear to have duplicate names. Out of paranoia I will call and have a VC note on my brothers that he is the son. My Dad will book as "Owner: John Doe" and the override (no charge) on my brothers will be "Guest: John Doe (son) owner". Something like that - I make sure it is clear that it is not a duplicate-named reservation.
Adam, I fail to understand how having 2 rooms under the same name is a security risk. Just stuff Wyndham makes up. I figure it's all about getting an extra $99 out of us, and they do, so once a guest confirmation is on the reservation I feel like they should be happy.
But, since it can be a hassle, and they like to threaten to cancel reservations, I don't book multiple rooms for guests under the same name. When I've had someone rent 2 rooms, I put them under different names of people staying (could just be the spouses or another relative).
I'm not saying I agree with the policy (I don't). But I'm fairly paranoid about overlapping reservations. I've never had a problem, but just in case, I jump through the Wyndham hoops.