Why cannot I receive the SMS verification code?

If you don't receive SMS verification code, please check the situations below:

1. Do not input '0' before your phone number after chosen the country code and make sure you input correct phone number instead of landline.
2. Please move your SIM card into another mobile phone or restart your phone and try again with anti-virus software turned off.
3. Network anomalies may cause loss of messages. Check whether your mobile phone is out of service. Please re-submit request by changing network.
4. Check with your phone service company to see if they blocked the system messages and ask them to unlock the service for you.