Getting no answer to the existing sub question..

A lot of people have been asking about logging into existing subscriptions on Flex. So far, I do not see an answer that is at all satisfactory. I've seen plenty of snarky responses from the Xfinity staff. But no logical, professional response. My experience with the Xfinity staff has always been fantastic, so this is a first. Can you please answer the question, are we able to log into existing subscriptions on Flex?

Thank you