In addition, the arrears will be subject to a late fee of three thousandths every day, and every little makes a mickle. There will be reminders and phone calls in the future, which will be very troublesome and uneconomical. After the arrears have accumulated to a certain amount, China Unicom can pay the arrears according to the requirements of the relevant regulations of the national telecommunications industry, in line with legal procedures. Therefore, it is suggested that if there is arrears, it is best to pay them as soon as possible at your convenience. Then wait until the contract expires before closing the account.
I hope my answer can help you.