Why can't a good bank card receive a text message when withdrawing money?

If the bank has a balance change notification service, the change will be sent by SMS, but some balance change notification services have a lower limit, which means that if the amount is too low, it will not be notified. The landlord can see if the amount is relatively low first. Another possibility is that although the bank sent a short message, the short message will be blocked or lost because of the problem of the short message network, and the mobile phone will not receive it.