Need plan/provision file updated

I need the plan/provision file or boot file updated on my cm2050v modem. I'm paying for the 2 gig plan and should be seeing more than 41 mbps upload (my download speed is fine). I've verified that my modem has the latest firmware. I've verified that I'm in an active, upgraded area. I've logged into the modem and verified that the signal levels were all in the recommended ranges. I've unplugged the modem, waited a while, and plugged it back in as suggested but that didn't do anything. I've gone through the Xfinity Assistant troubleshooting and it said 0 issues. Last time I posted Support staff said that I could get the Xfinity Assistant to start the update, but gave no guidance as to how to get it to do that and nothing I entered helped. I need a Support rep to send the updated provisioning file to my modem so I can start getting the upload speeds I should be getting.