This fee has no basis in law, and consumers have the right to refuse it.
Tips
usage
Bound, formal - almost never standalone. Mostly seen in fixed phrases: 查无实据 'investigation finds no real evidence,' 言之无据 'unsupported claim,' 空穴来风,未必无据 'no smoke without fire' (proverb). Compare 无凭无据 'no proof at all' (more colloquial).