Is the SMS reminder of Agricultural Bank of China to deduct the money from the bank card or the phone bill?

The service fee of debit card message service is deducted from the bank card. The message service fee is charged once a month. If the deduction at the beginning of the month is unsuccessful, the second deduction will be made at the end of the month. The actual deduction is subject to the branch setting. The account system that failed to deduct fees sent a notice the next day, asking customers to deposit before the end of the month, and deduct fees in batches at the end of the month. On the last day of the month, the account funds are still insufficient to deduct fees, and the message service business of this account will be stopped from next month. If the customer's account opened the SMS notification service in July and the SMS notification fee was not deducted in that month, the SMS notification service could not be enjoyed in July.