BRIEFS

Optus overhaul

Gouging claim

Australia's big four banks are being accused of gouging hundreds of millions of dollars from their New Zealand customers. A class action will allege they have charged up to $NZ1 billion ($A800 million) in excessive default fees.

Optus overhaul

Optus is overhauling its stores as competition intensifies for mobile subscribers. The country's second-largest telco will open 33 Optus-branded shops within a year and refurbish 67 existing stores, bringing the total number of revamped stores to 100.