It's no use. The documents provided by the travel agency are all routine procedures, which can only show that you are a member of the team.
2. How much higher than the success rate of individual signing?
The rate of applying for a visa is the same as that of applying for a visa yourself.
Whether you can get a visa depends on your own conditions and has nothing to do with the travel agency.
3. What is the minimum deposit for the travel agency to provide bills? At least 30 thousand, right
The main reason for the travel agency to collect this money is to prevent the group from running away. The specific amount of travel will depend on your situation.