If you have the correct direct deposit information for your bank on your 2019 return, the IRS will use that banking information to deposit your stimulus money to your bank.
If you had your TurboTax fees deducted from your refund, then it has not been stated how you will receive your stimulus money.
If you need to just update your direct deposit information, see the following from the IRS.
The IRS does not have my direct deposit information. What can I do?
In the coming weeks, Treasury plans to develop a web-based portal for individuals to provide their banking information to the IRS online, so that individuals can receive payments immediately as opposed to checks in the mail.
https://www.irs.gov/coronavirus-tax-relief-and-economic-impact-payments
