Users of National Australia Bank were left without mobile banking access on 31 May after an IT system crashed around midday . As angry users took to social media to vent their frustrations , a NAB spokesperson apologized for the inconvenience , and urged customers to use a desktop or an iPad to access web - based banking services . The bank 's in - branch and telephone banking services were unaffected by the outage .
Customers of National Australia Bank were left without mobile banking access on 31 May after an IT system crashed around midday. As angry users took to social media to vent their frustrations, a NAB spokesperson apologised for the inconvenience, and urged customers to use a desktop or an iPad to access web-based banking services. The bank's in-branch and telephone banking services were unaffected by the outage.