It will take the IRS a little while to get everyone's Stimulus Payments to them. We do not have access to the IRS's timeline, but we do know that they are diligently working on getting these out as quickly as possible.
If you have access to your Turbo Visa Debit Card, there is nothing more you need to do. You will be able to immediately use the stimulus funds upon deposit. You can sign in to your account to check your balance here: TurboTax Debit Card Login.