Jiangsu province failed to send SMS verification code.

The reasons for sending failure are as follows:

1, the number of acquisitions exceeds the limit: only 20 verification codes can be acquired every day. If you have exceeded this limit today, you need to wait until tomorrow to try to get the verification code.

2. Mobile phone service is not supported: At present, Jiangsu SMS verification code has supported all segments of the three major domestic mobile operators. If the mobile phone number does not belong to these segments, you will not receive the verification code.

3. Mobile phone security software interception: Some smart phones with security software will recognize SMS verification code as spam or spam and intercept it.