First the stimulus check will NOT be taken for the student loans.
Next, where was the original refund going ? If it was going to the TT debit card after it went to the third party processing bank the that answer is currently unknown at this time ...
As of now the third party bank has not released any definitive information:
I paid for tax preparation using Santa Barbara TPG this tax season. How will I receive my Economic Impact Payment?
The current IRS plans are to issue direct deposits to taxpayers that received a direct deposit. An IRS-issued check may be mailed to taxpayers that received a check printed from their tax professional's office.
We are actively working with the IRS to determine how the Economic Impact Payments will be issued. We will update this page when more information is available. According to this message on the IRS website published March 30 the IRS will notify taxpayers when more details are available.
Keep checking here : https://www.sbtpg.com/coronavirus-stimulus-payment-info/