I use the iPhone5. Sending two text messages a day wastes 10 yuan. I didn't open the cell phone data. Didn't turn on 3g

If you are sure that this 10 yuan has been deducted from the text message, it should be the fault of the sender for two reasons:

1, you sent an international message.

2. You sent short messages about value-added items, such as subscribing to SP or an application service, weather forecast service, etc.

You can call the operator's customer service telephone consultation. If this deduction goes against your wishes, you can complain to the operator, and the phone bill can be refunded.

I hope I can help you and adopt it.