Verification of canceling organ donation registration failed.

Third-party verification failed, and operators and mobile phones set blacklists. Solution: 1 When sending the verification code of China human organ donation SMS, it depends on whether there are prohibited words in the SMS. Check and resend. 2. The reason for the third-party SMS verification code platform is whether there are multiple backup sms channel when the main sms channel is provided. Due to the instability of sms channel, there is no backup channel, which easily leads to the failure of sending short messages and sending them many times. 3. In general, the operator's problem is relatively small. In the process of sending, packet loss is rare, so it is retransmitted. 4. The user has set a blacklist in the mobile phone security software, and some mobile phone numbers are not allowed to send text messages to themselves. Just cancel the blacklist.