What should I do if the deposit certificate in the urgent study visa expires?

First of all, the certificate of deposit is not necessarily your personal name, and sometimes your parents' names are better, because the embassy may consider that you are inclined to emigrate at such a young age, but this is based on the premise that the depositor of the certificate of deposit must give you a certificate of consent to support your education and need notarization by the notary office. If the intermediary does this for you, no problem. They all know how to help you.

Then, your misunderstanding of the certificate of deposit. As long as the bank can help you issue a certificate to prove that you have enough bank deposits and enough time. All you need to do is ask the bank to issue enough historical proof of your deposit to prove that your deposit is still there, such as your automatic transfer form. It seems a little complicated. In fact, the purpose of asking you to issue a deposit certificate is to prove that you have enough financial strength to support you in completing your studies. In fact, it doesn't matter who owns the money, even if it is a stranger, as long as he signs the certificate agreeing to fund your school and notarizes it. Of course, this is just an example.

So to put it simply, you just need to prove to the Immigration Bureau that you (or the person who signed the consent form for you, such as your father) have so much money and saved enough time, and that the money you plan to spend on school has not been used for other purposes. It's like automatically transferring your deposit when it expires, proving that your money is still in the bank, rather than being taken out and spent.