Seasonal Internet Access Plan

In late December, I attempted to sign up, via the website, for the Seasonal Internet Access Plan. We are snowbirds. We use this service when we leave Florida for New Hampshire in the summer. I was unable to find this option on line, so spent nearly 2 hours on a call to Xfinity. I repeatedly told the tech, at least 7 times, I wanted seasonal with internet at $29+. He had difficulty … kept putting me on hold … but finally said he completed my request. We have a smart home in NH, so definitely need Internet!! We arrived in Fl. on 12/27. I checked NH smart devices on 28th: no connectivity! Called Xfinity was told seasonal with Internet is not available in the northeast. This is crazy. I’ve been with Xfinity forever. Why isn’t this service available in the northeast? What are my options? Thank you.