1. There are many illegal ones.

2. The advance payment and deposit are paid to buy a house. Because the advance payment and deposit are collected by the seller, the intermediary company has no right to make its own claims on the advance payment and deposit. If there is an agreement with the house seller that the loan cannot be completed, that is, the house purchase and sale cannot be completed, and the loan cannot be completed, the house seller can be asked to return the advance payment;

3. Whether the deposit can be required to be returned by the other party must be Check the agreement with the seller regarding the deposit or the terms of the deposit. If there is no agreement with the house seller that the loan cannot be completed, that is, the house purchase and sale cannot be completed, and the loan cannot be completed, the house seller will be liable for breach of contract. One form of liability for breach of contract is that the seller has the right not to return the deposit to you.

4. You need a loan to buy a house, and the intermediary company promises and is willing to help you apply for the loan. Therefore, the intermediary company's promise to help you with the loan is an obligation that should be fulfilled.

5. If there is conclusive evidence that: 1), the intermediary company promises to help you apply for a loan; 2), the intermediary company wants to provide false proof of income and is unwilling to cause the loan to be denied. After assuming corresponding responsibilities to the house seller, you can seek compensation from the intermediary company for the losses caused by its failure to fulfill its promises.