What should the immigration agent do if he delays submitting the information?

1. First of all, you can communicate with the immigration agent and ask them why they are dragging their feet and not submitting documents. Maybe they have some reasonable explanations, or they need more time to prepare documents, or they are waiting for some information. In the process of communication, you can clearly express your own requirements and expectations and ask them to complete things within a reasonable time.

2. Secondly, the immigration agent has been dragging its feet to hand in the materials. You can contact the Immigration Bureau directly to check the progress of immigration application. Immigration may tell you what documents and materials you need, or tell you the reason for the extension. If you find any illegal operation or unethical behavior of the immigration intermediary, you can report it to the Immigration Bureau.

Finally, if your communication with the immigration agency is ineffective, or you are not satisfied with their service, you can consider changing to another immigration agency. Finding a reputable, professional and reliable immigration agent with excellent service can ensure that your immigration application can go smoothly.