Xfinity mobile ruined my vacation

I had just switched to Xfinity mobile about a month ago in order to reduce my cell phone bill from Verizon.  Xfinity said they had a Global pass of $10/day for international use, just like Verizon.  I was on a 3 week European vacation and crossed the border into Andorra from Spain.  Well...it ends up the country of Andorra isn't covered in their global pass, which i didnt know as I entered and it racked up almost $1k in data from just entering the country with my phone on until I could figure out what was going on and get the data shut off.  They charged $20/megabyte!!!...with just 40.5 megabytes used.  It was over $818 in data from just entering the country and getting to my hotel and half the cost was speaking with Xfinity trying to figure out what was going on and to get it to stop billing!!  This occurred in a little over an hour!!! They did reverse their $170 phone call they called me to help fix, which did nothing as it was still billing me otherwise the charge would have been over $988!!!  Anyway@s, after over 8 hours of being bounced around and speaking with Xfinity reps the past couple days it sounds like they are just going to make me pay.  It caused me so much stress and anxiety being treated so poorly.  It's just ruined my vacation!!!  Just for having phone on and existing.... As it turns out, Verizon's international plan would have covered Andorra!!!  I wish i never would have switched!!!!  I told the Xfinity Mobile reps they would be losing a customer over this but they didnt care. I even spoke with the highest level of their "Care" team as i was told.  They were very cold and just said...."Its a valid charge."  And would do nothing to help other than offer an extra 30 days to pay the bill.  I had texted and spoken with other reps who had said they would put notes in my profile to reverse these charges as they didn't have the power to and they told me their representatives in the background would make sure it didn't appear on my bill.....but it still did!!!!!  The "Care" team didn't care about this.   Its a predatory trap cash grab!!!!  I feel stabbed in the back by Xfinity!!!! I've never been treated so poorly by a company in my life!!!  It feels like they are stealing from me!!!    Please....its not too late to fix this Xfinity Mobile!!!!  My email is [Edited: "Personal Information"].  Please, please, surprise me and offer some compassion and empathy and good customer service and reverse/credit these outrageous data charges incurred by accident from Andorra!!! 😞  Otherwise...I warn whoever reads this to take caution....I don't wish this stress and anxiety on anyone.  I'm a human being and was treated like just some [Edited: "Language"] to steal money from!!!