Workers at numerous ANZ branches around the country will resume strike action against the bank today at various times, including in nine branches around Auckland.
This latest action follows a series industrial action, including a national day of action in which hundreds of workers around the country walked off the job.
The dispute was over attempts by ANZ to make workers rosters more flexible, FIRST Union Retail and Finance secretary Maxine Gay said.
"Bargaining with a bank is a bit like getting a credit card, you've got to read the fine print," she said.
"ANZ have been busy telling the public they only want a few people in some branches on unpredictable and changing hours. However that's not what they're demanding over the bargaining table.