It’s in the AADSAS 2018 instructions:
“Does ADEA AADSAS give refunds? It is a vital part of the process that the full instructions are read and the application is reviewed to ensure the necessary steps are taken to complete the application. Once an application is submitted, refunds are typically not granted. In special circumstances, though, refund requests will be reviewed. Applicants must submit a brief, written request within 30 calendar days of the end of the cycle to
[email protected]. ADEA reserves the right to grant or deny requests at its own discretion. Any refund granted will be returned to the applicant in the format it was paid.
Reapplicants accepted after June 1 to the previous cycle can request a refund; requests must be made within two weeks of the acceptance which will be verified by ADEA AADSAS staff.”