She [insisted to be paid] the full amount.

The verb 'insist' takes the preposition 'on' followed by a gerund, giving 'insisted on being paid'. 'Insisted to' is a common slip. The passive sense is needed since she was the person paid, so 'insisted to pay' would reverse the meaning. Learn which verbs take an infinitive, a gerund or a preposition plus gerund, as these patterns are frequently tested.