You should have entered a banks routing and account number if you didn’t you probably opted for mail 

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-thi...