In case the conditions for granting a visa are not fulfilled, the visa is refused. The refusal to issue an entry visa is notified to the applicant in writing.
The applicant may have an entry ban to Estonia or to some other Schengen country or be considered to be a threat to public policy, internal security of international relations of a Member State. An issued visa is annulled if it becomes evident that the conditions for issuing it were not met at the time when it was issued. A visa is revoked, if it becomes evident that the conditions for issuing it are no longer met.
The refused visa applicant or a visa holder whose visa has been annulled or revoked can submit an appeal to the Ministry of Foreign Affairs within 10 days from the receipt of refusal / annulment / revocation decision.
More information is available on the website of Ministry of Foreign Affairs of Estonia.