Unable to log into my Xfinity account/app, problems with signing up for internet

I attempted to sign up for Xfinity's internet on February 28th and I was able to link my last account and the new account. I got my order confirmation email immediately after . However after trying to log into the account on the app it told me I had signed in, but was not an Xfinity customer, I have not received the equipment yet but I received the confirmation text. I'm still unable to log in on the Xfinity website, and the app still tells me that I'm not authorized, so I'm confused.