Denied phone financing

Today I went to activate a line and finance a phone through Xfinity. I got to the last step and was denied a financing a phone. I don’t understand because I have a 700 plus credit score with all three credit bureaus, 100% payment history for the life of my credit, 0 derogatory remarks, good credit utilization, one open auto loan and make 70k a year. My credit profile is considered above average and I switched carriers partially because I wanted to upgrade my phone that I now apparently can’t get. I find it har to believe everyone that finances a phone through Xfinity has a better credit prog than that. Please help me understand, this has to be an error.