After you file

@jeffsw - I hope you're right one way or another.   And if it comes to pass that stimulus payments have to go back through SBTPG, there is no way they can conceivably take a fee from the recipient.   

Not legally - it would be a fee taken without  consent (unless there was some legalese mumbo-jumbo buried in their TOS that covered such an eventuality).

 

Not morally - they'd be stealing from peoples' relief payments during a time of global crisis.

 

In any event, if they even tried to do that, they'd get crushed with a class action suit the size of Jupiter.