My return was paid out Feb. 26 but I still haven't had those funds posted to my account. They were sent to "Green Dot Bank" and that was over a month ago. What do i do?

It sounds like you chose to pay the TurboTax fees out of the Federal refund.  Is that correct?   I'll tell you how to log into the intermediary company SBTPG to check on it and how to phone them, if necessary.

If you chose to pay your TurboTax fees out of your Federal refund, your funds will first go from the IRS to a temporary account at an intermediary bank--either Civista Bank of Sandusky, Ohio, or Green Dot Bank.  At the intermediary bank the fees are subtracted, then the rest of your funds are sent on to your bank (or prepaid debit card) in a second deposit.  The company that handles that is SBTPG (Santa Barbara Tax Products Group.)

Less commonly there can be delays at the intermediary bank, and additional ID info, etc. might be required.

If for any reason the second deposit fails (the one that is actually to your bank or card), it will bounce back to SBTPG's bank who will issue you a paper check in the mail.

Once the IRS has released your funds, you can log in to your temporary account at SBTPG to see the status of your funds.

To log in, choose the taxpayer portal at:
https://www.sbtpg.com/

SBTPG has a phone contact page at the following link. It also shows their business hours.  Even when they are closed, you may be able to get automated info, or you can log in as above.