On the IRS Site 'Where's My Refund?' you should be able to find out what the IRS sent you, if it's different than what is on your Efile.
Did you elect to pay your TurboTax Fees from your Refund? Here's more info on How Do I See My Fees in TurboTax Online?
If so, the SBTPG got your refund from the IRS, and deposited the balance to you.
If the IRS did garnish part of your Refund, they will send you a letter explaining it.
Here's contact info for the Taxpayer Advocate Service.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"