Account Setup is not working

I am a new Xfinity user and I recently signed up for internet. I am able to sign in, and my account says that it is still being set up, but beyond that, I can't see any details about my account or plan details. If I try to access any other services, it requires me to enter my phone number, and then says it does not match my account details. Same thing when I try to get support over the phone. I don't know how to proceed to navigate this block. Please help @Comcast_Support