Suspicious text messages from Xfinity Assistant

I just received two messages from Xfinity Assistant that I think are suspicious.  Both messages state "I'm Xfinity Assistant. I can help with the billing question you called about, just visit: https://x.cmp.xfinity.com/**********".  However, I didn't call Comcast about a billing question.  If someone from security contacts me, I will provide the full link given in each text message.