Protest a bill
To claim that a submitted bill was incorrect, or was other than for the goods delivered.
Jennifer is taking the day off to protest a bill, isn't she?
If you expect to reduce a payment when you protest a bill, you should collect and verify your facts before you call the vendor.
The "Tea Party" is meeting this morning to protest a bill on health reform.
The customer decided to protest a bill although she couldn't find her receipt.
They happened to be at the same place to protest a bill.