Is there a way to setup an IRS.gov online account when it isn't recognizing any of my financial account numbers I've entered? I need access for the tax credit payments.

I have copied and pasted the numbers, with the exception of my credit cards, directly from the websites. I even used the Experian website and it still is unable to verify any numbers I have provided. I need to update my information and manage the payments but without access, I'm unable to do so. I was unable to find any help through their FAQ pages either.