Xiaomi's mobile phone has had enough cards. How to recover?

My Xiaomi mobile phone card was forced to stop today without any notice, and the phone bill is still in the balance. I rent 9 yuan a month, and the traffic fee is 1 yuan a day. I have cancelled the caller ID service for 5 yuan, and I don't need caller ID. The number of calls per month is very small, no more than ten calls, which is equivalent to old people's calls. The mobile phone number is bound to major websites such as WeChat, Alipay, bank card and email. I didn't expect Xiaomi mobile card to be so unreliable. The content of the text message is as follows: Xiaomi important notice: Your number has been reported many times for alleged harassment/fraud. According to the requirements of the Network Security Law, the Anti-Terrorism Law and other relevant laws and regulations, Xiaomi mobile phone has restricted the outgoing call of your number. You can cancel your account and get a refund, or go to Xiaomi Mobile APP- Personal Center-Complaint Center for the second time after receiving the SMS (only Android phones are supported). Click verify /ss/ message? PN = 17 1789 15556。 For more questions, please call Xiaomi mobile phone customer service hotline: 10046. Please forgive the inconvenience.