Have you looked at their
DSL service-on web page? I found it was pretty accurate in telling whether the service had, or had not, been turned on yet when I was going through
my little 3-step upgrade process.
Wait, something's messed up. The first time I called, because my 768 hadn't jumped to 3.0, it was about 12:30AM. I had to wait till business hours to talk to billing, but I definitely had that first call & talked to a guy who determined that my line had been provisioned in a unique manner in the wee hours.