Xfinity mobile plan changed without my approval

Hello @user_gdsyao! Thanks for taking the time to reach out to our team on forums. We value you as a customer, and I am sorry to hear about the problems you experienced with us over the phone. My team is here to support you and would love to assist you with any service needs. I see you sent us a Direct Message, so we will respond to you there. 

Please also note that sending unsolicited direct messages is a violation of our forum guidelines. You must first create a Public post requesting assistance, and once a Comcast verified employee responds and asks for a direct message to be sent, you can then proceed with doing so. This is just a heads up for future reference, but I look forward to further assisting you.