Assistance with Mobile Activation Without SSN

Hello Xfinity Mobile Team,

I recently set up internet service at my home in Ann Arbor, Michigan through Xfinity. The plan includes a one-year mobile service.

I am an F-1 international student and do not have a Social Security Number (SSN).
When I tried to activate the mobile service through the app, it required me to provide an SSN.

Could you please advise how I can activate my mobile service using the included one-year plan without an SSN?
I would appreciate your guidance and support.