Because I don't quite qualify if I do it online. It's sort of complicated. It still shows my secondary line as being eligible in October 2010. The caveat is that I called one day and I caught some sort of magical, private promotion that they had where I CAN upgrade, but only through that call center. But I'm gonna call midnight anyway and see if I can reach someone. If so, I'll ask if they can see all that stuff on my notes.
I have this exact same magical promotion on my line as well, so I'll be calling them when I wake up tomorrow. At least this way I know I won't stay up all night F5'ing their website!