Is it impossible to receive information because the mobile phone number bound by the bank card is in arrears?

Someone sends a text message during the downtime. If the other party's mobile phone sends a status report, the mobile phone will prompt that the sending failed, which means that no text message can be sent during the downtime.

The SMS reminder of bank card balance change is a value-added service that the bank card sends SMS to your designated mobile phone number according to the prior agreement. I am not sure whether the mobile phone number is down or not, and I am not sure whether the transmission is successful. It is recommended to apply to the bank to change the mobile phone number that accepts SMS.