If prepaid balance not enough, how Aspen Cloud Storage billing system handle?
Every day central billing system deducts the daily usage from prepaid balance. If current balance cannot settle the daily usage amount, all current amount is deducted automatically and system will send out alert email to customer asking to recharge the minimum (the outstanding amount after deduction from balance). In next day, if customer still does not recharge enough amount, central system will send another alert email with latest outstanding amount. Customer can ignore previous alert email, latest alert email reflects latest status of customer payment. It means customer only needs to settle latest alert email. Note that if system detects a 7 days continuous overdue alert, user account will be suspended. For suspended account, user data will be kept for 30 days, but cloud system will not handle any requests to related user data. During suspension period, storage charge will be still counted. If customer settled all outstanding payment during suspension period, account will be re-acti
