My mobile phone card in Shanghai can't send text messages in Kunshan, and I can't receive the message "No problem with the number of the SMS center".

Dear, according to your situation, the problem may appear in the following aspects: 1, arrears (the subscription fee may be deducted at the beginning of the month, and the balance of the mobile phone is insufficient). 2, improper card cutting, card damage. 3. The number of the SMS center is set incorrectly (this is very possible). 4. The card itself is seriously oxidized or the Nihe bank card and ID card have been put together for a long time. For reference only.