Global Travel Pass is a big scam

After my wife and I recently returned from a three-week vacation, I was surprised to find that both of our cell phones were charged Global Travel Pass for the entire trip (20 days) for a total of $400.  After spending a lot of time on Xfinity chat and speaking with a customer service rep, I was told bluntly that our Global Travel Pass charges were legitimate.  For our angst, we were offered a measly 10 percent ($40) credit.  While I acknowledge that we both registered for Global Travel Pass, we did not receive a text message notification that Global Travel Pass had been activated.  I intended my Global Travel Pass to be used only in an emergency and my wife did not intend to use it every day.  Had I known that I would be charged for every day, I would not have signed up.  I did not intend to use cellular data and only to make phone calls, text, or use wifi when available.  I only learned after the fact that my phone's cellular roaming should have been turned off to avoid charges.  This was not explained or only indirectly mentioned in Xfinity's instructions on Global Travel Pass.  Had I been alerted via text when my Global Travel Pass was activated initially, I would have taken steps to have it blocked for the rest of the trip.  In sum, I believe that Xfinity's Global Travel Pass program is a big scam, and I am seriously considering cancelling my Xfinity account altogether, after having also undergone a billing fiasco with Xfinity last month with its internet/cable service.