Xfinity Mobile Free Line Activation

I am an existing Xfinity Internet customer, and my account currently shows the “Claim your free line” offer for Xfinity Mobile.
I am an F-1 international student and do not have an SSN. I attempted to activate the line, but the activation process requires an SSN. I have seen previous responses in the Xfinity Community mentioning alternative account verification methods for customers without an SSN. Since the free-line offer is already attached to my account, could an Xfinity representative please review my account and determine whether manual or alternative identity verification is available for activating this promotional line?
I can provide my passport, F-1 visa, I-20, Xfinity account information, and payment information privately if needed.