You have no dog in this hunt - if they want information, they go to the Rep Payee and then to SSA.
What to do if you have problems with your payee
You and your payee should talk about how much money you receive from Social Security and how to spend it on your needs.
Then talk with your payee about how you want to use your money. If you can’t agree on how to spend your money, or if you believe your payee is misusing or stealing your funds, contact Social Security.
https://www.ssa.gov/pubs/EN-05-10097.pdf