You can verify your banking information by reviewing your printed tax return and confirming the bank information you provided. This will be found on your Form 1040 under the Refund section (Lines 21a and 21b).
Please see the below TurboTax FAQ to print/view a copy of your 2019 return:
https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-get-a-copy-of-a-return-i-filed-this-year-in-turbotax-online/00/25932
that wasn't helpful. I am trying to file electronically, the routing number is entered everywhere, but the page says to verify the routing number which was carried over from the prior return.
To contact Customer Support for assistance please click the link below.
https://support.turbotax.intuit.com/contact/