How does the postal service charge for SMS?

Contact postal customer service to cancel the automatic renewal.

1. Contact postal customer service: Call postal customer service, and you can find the phone number in the postal official website or the bill. Express your willingness to customer service and explain that you want to cancel or close the SMS service fee.

2. Cancel automatic renewal: automatic renewal deducts SMS service fee. You can log on to the postal website or mobile phone application, find the setting page about SMS service fee, and turn off or cancel the automatic renewal option.