Mistaken Cancellation Request Panic

I received an email recently saying that I had put in a cancellation request for my Xfinity Wi-Fi. I did no such thing. This is a complete mistake. I need my Wi-Fi service to continue. As best as I can tell, One of my new roommates mistakenly created an Xfinity account and put our address for her account.

Somehow, without my knowledge or consent, this led to a cancellation request on my account. I have no idea what to do. I called the customer service and they were unable to help me. I am now panicking as it seems my account is going to be shut down and my Internet completely gone through no fault to my own. 

I was never contacted and asked to authorize the cancellation request. I only knew about this once I got the email that my account was being canceled and my Wifi taken away.