Arrears

If there is not a sufficient account balance to pay for your bill and there is no other payment method configured, your account will go into arrears. If you want to continue using your cloud services, you will need to update your payment method or to top up your account in a timely manner.

Yearly/Monthly is a pre-paid billing mode, so you can continue using yearly/monthly bandwidth packages even if your account is in arrears. However, you cannot perform operations such as changing the bandwidth or renewing the bandwidth package, because they will generate new expenditures.