Erionm is correct. Points may only be moved ONE time. So if they were transferred, banked, or borrowed, they cannot be moved again. At all. So you always want to be quite certain before you do any of these final transactions. And if you are ever transferring or the transferee, you want to be very, very sure those points are going into the exact use year that they are needed.
Oh dang, I think you are right about banking transferred points, Bill! It was so drilled into our heads about points only being able to be moved one time I forgot about that!