Operating tool: vivo X9
Operating system: Funtouch OS 7. 127.
Software: telephone function
First, click on the phone to open it.
2. In the dialing interface, enter 9506 18.
Three, after the completion of the input, click the dial button. After making a call, click the numeric keypad icon to open the numeric keypad.
4. According to the voice prompt, press 1 on the numeric keypad to transfer to manual customer service to make a complaint.