Unable to login to Xfinity App on my phone

Unable to login to Xfinity App on my phone. Reinstalled app twice, tried my username, email, phone number. Every time I get error: Xfinity ID you entered was incorrect. Please try again. I am able to login to xfinity on my computer. I called yesterday Jan 18 2026 and they gave me Case ID: IH266777716. Could I get a status of the case or ETA on resolution?