Customer Security Assurance team needed to enable online/IVR payments?

I appear to be having the same issue as the March 19 issue reported by another user at https://forums.xfinity.com/conversations/billing/youll-need-to-make-a-payment-in-person/69bc07ad58321463f4415007

Specifically, one of my credit card numbers was changed by my bank, and unfortunately when xfinity then automatically attempted auto-pay multiple times with the card, xfinity then locked my account from making future payments. Although I can successfully authenticate on the xfinity website, app, and IVR, xfinity blocks me specifically from getting to the part where I would provide a payment method. Unfortunately, I do not have my own vehicle and the closest xfinity store is >12 miles away. I've had xfinity since 2023 and I believe this is the first payment issue. I've spoken with the xfinity billing department multiple times and they confirmed again this evening that both they and their supervisor are locked out of adding a payment method to my account.

Based on https://forums.xfinity.com/conversations/billing/youll-need-to-make-a-payment-in-person/69bc07ad58321463f4415007 it appears that the Customer Security Assurance (CSA) team may be needed to resolve the issue and unblock payments.

On Friday April 3 I called the CSA team at 888-565-4329. They confirmed that the issue is at their end and is not due to me, and they provided a ticket number and said it would be resolved in 2 days. However, when I called in today, the CSA team said that it is a billing issue and transferred me to the billing department, and the billing department says there is a payment block on my account that they and their supervisor couldn't resolve. They transferred me to the backend team who again walked through the issue with me, but was unable to resolve the issue after speaking with their supervisor, and transferred me to someone else who again walked through the issue but after speaking with their supervisor was unable to resolve the issue.

Perhaps there is specific language that I need to use, or a specific sub-team within the CSA department, that I need to use in order to have my issue resolved like https://forums.xfinity.com/conversations/billing/youll-need-to-make-a-payment-in-person/69bc07ad58321463f4415007 ?

Per xfinity forum policies, I am avoiding providing the ticket number here and am not direct messaging xfinity support with the ticket number until requested.

Thank you.