I purchased two of these for work, but when I got them out of the box, one of them had NO legs (no segments to make the riser taller). I've used these in the past and am familiar with them, but was shocked to see that there were no legs with this one. To top off my disappointment, I tried calling the customer service line but apparently they don't offer support on Sundays. Really? How do you run a business and have zero support for customers on the weekends?