Approval of your REFUND does not come from TurboTax. It comes from the IRS. The IRS will not begin to accept returns until January 27, so you will still have to wait and watch your email for the acceptance of your return. (or rejection) After the IRS accepts your return, the IRS still has to review the return and process it. If you are getting earned income credit or the additional tax credit your refund cannot be issued by the IRS until mid-February, which means you can receive it by the end of February/early March.
About the refund loan:
https://ttlc.intuit.com/community/refunds/help/about-refund-advance/00/27333#sh-collapse1
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
