More people are complaining about KiwiSaver to the Banking Ombudsman.
In its latest current account newsletter the financial services complaints scheme noted a 51 per cent increase in KiwiSaver cases compared to last year.
The scheme looked into 57 cases in the year to June 2013 including 32 enquiries, 21 complaints and four disputes.
Banking Ombudsman Deborah Battell said the majority of the complaints were about people's inability to take their money out, especially on hardship grounds.
"We think these cases may continue to increase as mortgage-related interest rates increase, the value of customers' savings in KiwiSaver schemes grows and as banks increase their share of the KiwiSaver market."