Quite so. If cash is presented to the customer and then retracted there isn't (or at least wasn't) a way for the ATM to know exactly what had been retracted, i.e. you requested amount X that required the ATM to dispense…
Whilst that maybe the way your bank has chosen to operate, it is most certainly possible for ATMs to report a step#5 failure to the banks host which will reverse the transaction.
Quite so. If cash is presented to the customer and then retracted there isn't (or at least wasn't) a way for the ATM to know exactly what had been retracted, i.e. you requested amount X that required the ATM to dispense…
Whilst that maybe the way your bank has chosen to operate, it is most certainly possible for ATMs to report a step#5 failure to the banks host which will reverse the transaction.