how can i change the tariff

The concern is not "Xfinity App" help related. Thread moved here to the proper help section, and for greater exposure to Comcast corporate employees (The Digital Care Team) for assistance. 

Hello, good morning, and thank you for reaching out to Xfinity Support, here on the Community Forum, 

@user_fd5c0f. I am happy to assist in any way that I can. Do you mind providing a bit more detail of your situation for me?