Understand how overdue payments affect your File Storage NAS file systems, what happens after service suspension, and how to prevent overdue payments.
Check for overdue payments
Go to the Account Overview page of the Expenses and Costs console. Check whether you have overdue payments. If you have overdue payments, add funds to your account as soon as possible.

Causes of overdue payments
Overdue payments occur in the following situations:
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Your account has no resource plans and the account balance is insufficient.
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Your account has resource plans, but your usage exceeds the plan quota and the account balance is insufficient. For more information, see Why do I still have overdue payments after I purchase a resource plan?
Service suspension for overdue payments
The service status changes as follows when payment is overdue:
General-purpose NAS file systems
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If you settle the overdue payment within 15 days, your service is not suspended.
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If the payment remains overdue for more than 15 days, Alibaba Cloud suspends the NAS service. Your stored data is retained, but no new fees accrue. If you settle the overdue payment within 22 days, the service is automatically re-enabled.
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If you do not settle the overdue payment within 22 days, Alibaba Cloud considers that you no longer need NAS and deletes all data stored in your General-purpose NAS file systems. Deleted data cannot be restored. Storage fees continue to accrue until your data is deleted. To stop charges, delete your General-purpose NAS file systems.
Extreme NAS
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Settle overdue payments within 15 days to avoid service suspension.
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If you do not settle the overdue payment within 15 days, Alibaba Cloud considers that you no longer need Extreme NAS and deletes all data stored in your Extreme NAS file systems. Deleted data cannot be restored. Storage fees continue to accrue until the file systems are deleted. To stop charges, delete your Extreme NAS file systems.