It shouldn't be possible. Bank loans are very formal. You are a student at school and have no ability. Besides, since dad was blacklisted by the bank, it means that there is something wrong with his personal credit. It is necessary to clarify the purpose of dad borrowing money. If you are really in a hurry to save people, you can do something. If it's not serious, you can refuse. I don't think filial piety is like this.