I couldn't send a message, so I touched the message center in the settings. Please help if there is a way to recover it.
Hey @YUJIN_20660, Welcome to the 3Community 🙂
When you are looking in the settings now are you given the option to enter a number into the messaging center in Settings? If so can you enter +353830000800 into the field and then restart your phone and check if this works for you.