There is no fixed limit on the number of applications; you can apply more than once for the same person. But repeating an application without strengthening its grounds, with the same deficiency still in it, damages the file history and makes later assessments harder. The right approach is to support each new application with information and documents that close off the specific ground for the previous refusal — completing missing paperwork, meeting the employment ratio, strengthening the salary or expertise criteria, or clarifying the definition of the position.
Under the International Labour Force Law (No. 6735) there is also a route of objection against a refusal within the applicable period, and sometimes the objection is the better instrument rather than a fresh application. After every refusal the first step is therefore to work out why it was refused and how that ground can be removed; the application should be renewed only once there is a concrete improvement to show. Otherwise the repetition produces the same result.
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