Xfinity Mobile Cancelation Issues and Unauthorized Charges

I am very frustrated with Xfinity Mobile. I tried to take advantage of the free-line offer, but for some reason they activated two lines on my account. I couldn’t get either line to work with my phone, so I contacted them and asked to cancel. When I received the confirmation email, I noticed there were two numbers listed, so I called again and asked them to cancel both lines and remove my credit card from the account. They told me the cancellations were processed.

A few weeks later, I logged in again and saw the lines were still on my account. I tried calling— which is almost impossible— and they again told me the lines were canceled, that I wouldn’t be charged, and that my credit card would be removed.

Today I logged in and saw a charge of $30.17. I called again and was told the lines were canceled, yet my account still doesn’t show that, and my credit card is still attached. The representative put me on hold and then hung up.

This has been extremely frustrating. Please help.