Pentagon FCU Bank Account Or Service Complaint

Pentagon FCU Bank account or service department,

Other bank product/service Making/receiving payments, sending money Maryland

I wanted to transfer, on Pen Fed CU website, money from our checking account to IRA account. The IRA account was not available for transfers. I called and ask why it was not available. I was told that this kind of transactions is prohibited by law - because of reporting requirements. Is there a law/regulation that prohibits electronic transfer of money into IRA account form checking/savings account?