Upgrading Peacock

I made the mistake of switching Peacock to be paid with my Xfinity not realizing that it would downgrade to the version with ads.  Since then I have tried numerous times to upgrade it on the Xfinity website.  I have spoken with multiple Xfinity "customer service" representatives and every one had no clue how to help or just plain wrong information.  The website is easily one of the worst websites for a company I have ever dealt with, it's slow, loads poorly, and when you try to upgrade it errors out telling you to call customer service only for them to tell you that they can't help and directing you back to the website, that isn't working properly.
How can I address this?  I have spent multiple hours on the phone and between either being transferred to tech support because they believe there's some kind of problem with my PC (there isn't) or my connection (there isn't) or maybe just to pass me to someone so they don't have to deal with it.

At this point I don't care how it gets fixed, I either need to cancel it being linked to my Xfinity or it needs to be upgraded to the ad-free(yes I know that costs extra).

Even this very site and form are a perfect example of how poorly setup this whole "suite" of sites are; the screen extends far lower than most/any browser windows would be in length and even though the Topic, Tags, and Cancel/Post buttons are off the screen there's no ability to scroll down.  I had to take the tab from the browser and manually enlarge the window to be about 50% larger.