I have been trying to update my online bill for T-Mobile for weeks now but Quicken has been reporting that the "Biller account is locked" and that T-Mobile is reporting that the account is locked, suspended, or needs me to provide more information. But when I talk to T-Mobile, they say the account is not locked. I can log into my T-Mobile account without any difficulty.
I called T-Mobile and talked to a customer service representative who stated my account was not locked, then got transferred to a technical support who again said that my account is fine. He was going to escalate a technical ticket for T-Mobile to review and "work" with Quicken to resolve.