Is a girl who seeks a fatwa without her father's permission sinning, and is she obligated to ask for his forgiveness?

The answer to the question has details: If the father has authorized the communication, there is no harm in connecting. However, if the father has forbidden it, then obedience to him is obligatory, and communication should not occur except with his permission. Whoever does so without his permission is sinful. He must repent and return the cost of the communication to his father or seek his forgiveness and inform him of the truth. If he fears significant harm, he can return it by other means. If he does not have a source of income, it remains a debt upon him until he is able to pay it.