It is a scam to cancel the mobile phone card and ask for the utility bill. According to the relevant information, there is still a balance in the mobile phone card, so I take my ID card to the nearby business hall and cancel it immediately. The mobile phone card is in arrears, and you need to make up the phone bill owed before you can apply for immediate cancellation. It's a scam to ask for the water and electricity bill. Ignore it and go to the business hall yourself.