Xfinity Internet & Mobile

I became an xfinity mobile and xfinity home wifi customer in May of 2025. As part of a promotion, I am supposed to receive xfinity mobile free for 1 year because I bundled with an xfinity mobile plan with my home internet. However, I am being continued to be billed for May and for June. I have spent 10+ hours with customer service and received no help, despite them acknowledging the issue. Every customer service rep agrees my billing is wrong but "they aren't the right person to fix it" and transfer me to someone else! I have been overcharged every month and xfinity has done nothing to resolve my issue, this is illegal and I am owed money.

1. Does anyone know how to fix this or ask for help? Is California, Small Claims Court the only option to get my money back? 

2. Does anyone know how to stop autopay?

Appreciate any help; I am desperate as I'm paying for something I dont need if it is not free.