Yes, you give them the deposit on your CC and you can book with the points.
They will only sell you a small add on with the same UY as you currently have. Now, if they don't have the points, then you're on a waitlist and so you must wait.
Bobbi
PS. If you want 160 or more, you can have a different UY if you want, it will be a different contract. Otherwise, the points, with the same UY are your original contract number then .1, .2...as many add ons as you have. (We are up to .9)