First of all, you should contact Xiaoman Company as soon as possible, report the fraud incident to it and ask it to provide relevant information and support. Small full loan is a legal Internet finance company, and there should be a perfect customer service mechanism to help you solve the problem.
If Du Xiaoman can't solve it, you can contact the local public security organ to report the case and let the police intervene in the investigation to hunt down the fraudster. At the same time, you can also consult a lawyer to understand your rights and feasible recovery plans.
It should be noted that legal proceedings may take time and money, and may not completely recover your losses. Therefore, before taking any legal action, you should carefully weigh the risks and benefits and collect as much evidence as possible to support your claim.
Supplementary note: let the police intervene as soon as possible.