If you had asked to set up or change your direct deposit info, then you would not have been able to NETFILE. But since you were able to file, you likely told TurboTax that you either had direct deposit set up with the CRA, or didn't want to set up direct deposit.In that case TurboTax would not ask you for your banking information.
If you wish to change or verify that info, please contact the CRA: https://turbotax.community.intuit.ca/replies/2647704