Not Receiving Advertised Upload Speeds of 200+ Mbps

Hello, within the past few weeks I noticed that the advertised upload speeds for my current Internet plan (Gigabit Extra) have been changed on the Xfinity website to 200+ Mbps.  It used to be a maximum advertised of around 35-40 Mbps.  

I actually exceed the "typical download speeds" of the Gigabit Extra plan (1200 Mbps) - I generally get around 1435 Mbps download which is fantastic!  I absolutely do not need more than that.  I am very happy with my download speeds.

I am however currently getting about 1/5th of the newly advertised upload speeds.  I have seen many other threads of people mentioning they are not receiving these new upload speeds.  I typically speed test around 42 Mbps - nowhere near the 200 Mbps now being advertised as available on the Xfinity website (for my personal address).   

The "Connect" plan for only $19.99 per month (with new contract) download speeds are far slower than what I have but the upload speeds are nearly triple of what I pay for - more than 3x as much as this plan costs.

I would like to know why these new Upload speeds have been advertised like this for weeks with zero change to my actual upload speeds.  If anything I have been experiencing more issues recently than I have in the past. More packet loss, my upload speed randomly tanking (which will kill my Twitch streams).  Very sporadic latency variations etc.

I would really appreciate hearing back from an Xfinity representative about these issues.