Mobile company to deliver banking sms within 10seconds

Almost all of us use sms alerts on mobile of the banking transactions. We often realise the time duration between the banking transaction and the sms alert. Even some sms comes the next day and some don't come even the transaction amount is high. We think that this is the fault of banks but this is the fault of mobile companies. They don't care about the security and the usefulness of the sms alerts to the customers.