After texting with kc and binding the mobile phone, has anyone been charged for the mobile phone?

I used it, and there will be no charge. It's just that there are many restrictions and the service is unstable. Send 300 short messages per month (per day 10), sometimes the other party can't receive them. The mobile phone is only 10 minutes per month, and sometimes it will be disconnected in the middle, as if it can't exceed 5 minutes at a time. It is best to use paid service, so the quality of service will be much better.