The IRS may have not completed the processing of your return yet. Per the IRS, most refunds are received within 21 days from the time a return has been accepted (received).
For the most up-to-date information regarding the status of your tax return and a specific date of when to expect your refund, please visit the IRS Where's my Refund? site.
For additional information, please see the TurboTax FAQ When will my refund be deposited to my Turbo® Visa® Debit Card?