There are several instances when you can be denied this visa. One. If the applicant has kids less than 18 years, who live with them and depend on them financially. Also, you may be denied the visa on the ground of refusal. That can happen if maybe the documents you submitted did not meet the requirements or have previously breached the Spanish immigration rules. Lastly, you may also not qualify for a visa if your application doesn't fall within the required permits in your country. Every country received a limited number of youth mobility program visas.