Can I appeal if the visa of Spanish exchange students is rejected?

If the proof of financial ability lacks credibility, your appeal is likely to be rejected. However, my suggestion is to write an affectionate complaint letter, and according to your financial proof, find and explain the problem in detail, and also need to sort it out. Besides, you are an exchange student from Spain. Theoretically, your economy should not be as strict as the requirements for studying abroad. What I want to ask is: where is your household registration? If it is under the jurisdiction of the Shanghai Embassy, the requirements are really strict. In addition, is your exchange student handled through your university? Then this situation needs another explanation. I hope I can help you, but based on your situation, I think it's really hard for you to figure it out without the help of professionals. Therefore, you can consult the intermediaries in various regions, and combine their situation to find the organization that really works for you. As for the price, I heard that the average price is around 8000.