Dongguk Administrative Office 1481405, Eulji-ro, Jung-gu, SeoulCancellation or modification of permission to extend the stay periodDongkuk Administrator 50m NAVER Corp. More / OpenStreetMap Map Datax NAVER Corp. /OpenStreetMap Map Controller Beomrye Real Estate Street, Myeon, Dongsim, Gun, Gusi, and Provincial GovernmentAs it became known that a study visa (D-2) and a language trainee visa (D-4) could be easily issued just by entering a university in Korea, it received great attention from foreign students. As criticism rose that it was being abused for a different purpose from the original purpose, the criteria for academic and financial competency screening were strengthened, including the mandatory submission of documents to prove Korean proficiency for international students who are planning to go to uncertified universities when applying for visas, as well as the implementation of an academic and financial competency guarantee system for Vietnamese language trainees.After being issued a D4 visa and staying in Korea for a Korean language course, there are many cases where they are classified as illegal residents and forced to leave the country without applying for an extension. In this case, there are cases in which students leave the country without being able to process the return of the study expenses deposit among the things that need to be arranged in Korea. In order for a Vietnamese student to enter Korea on a D4 or D2 visa, the [Vietnamese study expenses deposit] is 10 million won. After entering the country, 50% of them can be found, and the remaining 50% will remain the same. Since it’s not a small amount of money, there are cases in which the country asks how to return the study expenses deposit. The same country administration is in charge of canceling the deposit for Vietnamese study abroad expenses and returning the deposit.When foreign students enter Korea, they are granted a period of stay. If they enter Korea with a qualification of study abroad (D-2) or general training (D-4), they may be granted a period of stay of up to two years at a time and 90 days at a time if they enter Korea with a qualification of short-term visit (C-3). However, if the Minister of Justice deems it necessary in light of international customs, reciprocity principles, or national interests, the upper limit may be set differently.an extension of one’s stayVietnam Study Expense Guarantee SchemeIf a foreign student falls under any of the following, the permission to extend his/her stay may be revoked or changed: 1. Where a guarantor withdraws his/her guarantee, 2. Where it is found that he/she has obtained permission by false or other fraudulent means; 3. Where the conditions of permission are violated; 4. Where a change in circumstances causes a serious reason that the status of permission can no longer be maintained; 5. Where the degree of violation of the Immigration Control Act or other laws is serious; or where it violates the legitimate duty order of an immigration officialReturning deposit for study abroad expenses in Vietnamthe upper limit of one’s stay