My SIM card can't send text messages. What should I do?

Hello, call other phones first to confirm that the card number is not in arrears. Then call customer service and go to the manual station to see if the SMS function is turned off. Ask to switch the SMS function again. If the telephone customer service query is normal, closing and restarting the SMS function is still invalid. I need you to take your ID card to the mobile phone business hall in your local area.