XB10 stuck at 100 Mbps upload on 1Gb Symmetrical Plan (Likely Provisioning/Bootfile Issue)

Hello!

I'm currently subscribed to Xfinity's 1 gig symmetrical service, and the Xfinity Plan Builder for my account shows 1 Gig download / 1 Gig upload as my current plan.
I recently switched from an XB8 to the new XB10 gateway.

However, my actual upload speed is still hard-capped around 100–110 Mbps, while my download speed is around 1 Gbps.

I've already completed the following troubleshooting:

Tested using a direct wired Ethernet connection.

Verified that my computer's NIC is negotiating correctly and is capable of multi-gigabit speeds.

Power-cycled the XB10.

Confirmed that the issue persists after switching from the XB8 to the XB10.

I also noticed an apparent discrepancy in my account, I attempted to talk on the phone with an agent as well as texting one and they didn't get it and sent me to the store, which i went into the store and they said they couldn't do anything as "it's all back end stuff we cannot touch", which, fair.

Here's what I saw.

"Plan Builder: 1 Gig download / 1 Gig upload listed as my current Plan"

"Current Services: 1 Gig plan up to 1000 Mbps download / up to 100 Mbps upload"

My actual wired speed test results correspond to the latter: approximately 1 Gbps download and 100 Mbps upload.

Could an Xfinity support representative please check my account provisioning, rate codes/service tier, and gateway configuration to determine why my account is showing 1 Gig symmetrical service in Plan Builder but is still provisioned for approximately 100 Mbps upload?

I already have the XB10 installed, so I'm primarily looking for the account/service provisioning discrepancy to be investigated rather than another equipment replacement.

I can provide screenshots of both the Plan Builder and Current Services pages if needed.

Thank you!