For some reasons, can I amend my application after submission? Or can the online system be re-opened for me to upload/replace supporting documents or reference letters, since the uploading period has lapsed?

We are afraid that you would neither be able to amend your application after submission, nor upload/replace supporting documents or reference letters through the online system after the uploading period has lapsed, in any way.

Therefore, please make sure that you have input the details accurately before submitting your application and upload all the (correct) supporting documents, including reference letters, within 4 weeks after the creation of your account, or by the deadline of the clearing round, whichever is earlier.