Unable to link Xfinity account to ACP

I applied for ACP, was approved and have my application ID. However, whenever I follow the instructions on xfininty.com/acp (How to apply > Apply Now) I end up on https://www.xfinity.com/buy/customize with three dot animation and the page never loads.

I've tried reaching out to chat support twice and they both told me to wait a few hours. I also tried yesterday with the same result. Could I get some help linking my account with ACP?

Things I've tried:

- Trying in Incognito/Private mode

- Using different browser

- Using different device (Desktop and Phone)

- Using different network

Same result.