I had asked Xfinity Mobile to cancel my lines around March 28, 2018. I was not aware that they reinstated my lines some time after that, while I was overseas. They have charged me line access fees and taxes beginning from Aug-Sep cycle. They also charge me for data for Jan-Feb of 2019 billing cycle. I was charged, illegally without my permission, for phone bills. After I came back from overseas, I kept using my phone for youtube, facebook, and such. This is where the data charge comes from. I wasn't aware that my phone lines were still active 10 months after I had cancelled them. I thought I was able to use the phone because I had Xfinity Internet services at home. I had never agreed to having phone services on my device after March 28, 2018, therefore I should have been never charged for phone services. I have paid late fees on my credit card, for which xfinity is partially at fault because they had wrongfully added to my credit card balance. I have also spent up to 10 hours of time arguing and disputing these charges with customer care representatives. I have waited for about 2 months or so to get this money back, during which time I have had to go through unnecessary amount of stress that I shouldn't have had to.