Consumers made 31,297 new complaints to the Telecommunications Industry Ombudsman in the January-March 2016 quarter, the TIO reports today.
The result was a 32.8 per cent increase from the previous quarter, but a 5.6 per cent decrease from the same time last year.
"January-March is traditionally the TIO's busiest quarter, but we are experiencing a sharper than usual increase this year," Ombudsman Judi Jones said. "Overall, complaints are continuing to trend down."