jlpt application successful message not received

Check whether your mobile phone has the blocking function. If not, call and ask.

You are confirming that the registration is successful. It is possible that the information has not been sent yet. It may be available after a while. People will definitely wait until everything is done before sending the information collectively. It is best to send it by yourself. Log in again and see if it passes the review. As long as it passes, it doesn't matter if there are no text messages. Also, check whether your phone has the function to intercept text messages.