Generally speaking, the intermediary whose customer's loan is cheated is liable. According to the law, if a party adopts fraudulent means and violates its true meaning, the defrauded party has the right to request the people's court or an arbitration institution to cancel it.

Legal objectivity:

People's Republic of China (PRC) Civil Code

Article 148

If a party commits a civil legal act that goes against its true meaning by fraudulent means, the injured party has the right to request the people's court or an arbitration institution to cancel it.

People's Republic of China (PRC) Civil Code

Article 149

If a third party commits fraud, causing one party to commit a civil legal act against its true meaning, and the other party knows or should know about the fraud, the defrauded party has the right to request the people's court or an arbitration institution to cancel it.