Gree didn't succeed in sending text messages to join the company. When will he join the company next time?

It depends on what the company says. You can consult the insiders.

The policy of some companies is that if they don't start on time, they can't start again. Therefore, if you can't join the company on time because of an emergency, you should make it clear to the company and ask if you can find another time to handle the entry matters. Otherwise, because of the small loss, the loss outweighs the gain. If you can ask clearly, ask clearly.