TurboTax does not hold your refund.  Your refund once your returns are accepted, is issued by the IRS and State.  Only they would know when you will receive your refund.

You can check the IRS website, Where's My Refund, for information on your Federal refund.

https://www.irs.gov/refunds

If you have a State refund, you can check the status of your refund on your States website.

How do I track my state refund?

https://ttlc.intuit.com/community/refund-status/help/how-do-i-track-my-state-refund/00/25571