The text message was sent but the other party didn't receive it, and the fee was deducted? Why is this?

There is still a charge for sending or not receiving a text message. If many people don't receive it, there will be a problem. Are you sure you sent a message, and then the other party's mobile phone message was not intercepted by third-party software? That is the operator's problem. You can call the operator's customer service phone to ask, make it clear, and be tough. See how to solve it. If it is the operator's problem, it should be refunded.