I tend to agree that Citigroup has the better argument, but this is weirdly lopsided coverage. Revlon's bank repaid Revlon's loan using money Revlon didn't have. Oops! But that's not clearly a reason for the lender to return the repaid loan.
What happens if I pay one of my bills and realize later that it would be more convenient for me to have paid less so I'd have more money for whatever else? How do I claw back the amount I now wish I hadn't paid?