The Australia-based Commonwealth Bank was hit by a service outage on Wednesday, with customers reporting problems accessing the bank’s mobile app.

Australia’s ANZ Banking Group will halt the remaining A$800 million ($520 million) of its planned A$2 billion share buyback while maintaining its dividend, as CEO Nuno Matos pursues a strategy to simplify the bank, boost cash reserves, and regain market share.

Australia and New Zealand Banking Group (ANZ) has agreed to pay A$240 million ($159.5 million) in penalties—the largest ever imposed on a single entity by the Australian Securities and Investments Commission (ASIC)—over systemic failures ranging from acting “unconscionably” in a government bond deal to charging deceased customers.