It's hard to say if there are no corresponding clauses in the contract or the relevant clauses are difficult to define. You didn't apply for a comprehensive university because you couldn't take the TOEFL exam because you didn't register, so you missed the deadline. However, if it is really pursued, the responsibility for TOEFL registration is not in the intermediary, but in the scalper. Even if the scalper is found by an intermediary, the intermediary is not directly responsible. Not to mention the scalpers, they are not reliable themselves, and they are only verbal agreements, so people will definitely leave you alone.
In this matter, it can only be said that the intermediary has indirect responsibility. From a legal point of view, you are also responsible, because you used a scalper who relatively ignored the regulations.
So I suggest you take the contract as the basis. First, seize 20,000 yuan to apply for a comprehensive university, but for whatever reason, the intermediary only applied for a community college for you, so you only need to pay 1 1,000 yuan; Second, although the intermediary has no direct responsibility for TOEFL registration, it still has indirect responsibility-they found the scalper. Moreover, even if the TOEFL registration is unsuccessful, comprehensive colleges can still apply, but they can't issue TOEFL scores when submitting the application, but they can make up the scores after submitting the application and before the final scores come out (usually after the deadline 1 month or so). However, the other party did not do this, but chose to apply for a community college as a more labor-saving way to solve the problem, which can be defined as incomplete intermediary work or even dereliction of duty. Based on the above two points, the intermediary should return this 1 ten thousand yuan to you.