In its full year report the Ombudsman revealed it completed double the investigations over the 2009/2010 year than in any previous year and facilitated $14.5 million in compensation to complainants.

Over three quarters of the completed investigations over the financial year related to investments and superannuation, largely relating to ANZ/ING, and mortgage finance, an area that saw complaints increase by 18% on the year earlier.

The Ombudsman said that while mortgage finance complaints increased, the nature of the complaints changed over the year.

At the start of the year the bulk of the complaints regarded fees for breaking fixed term mortgages. By the end of the year the majority of complaints were from customers that had fallen into arrears, sold their homes and been forced to pay early repayment costs.

The Ombudsman received a number of complaints relating to a bank's removal of a discount on a floating interest rate home loan when interest rates began to fall.

Complaints over break costs "were a particular feature in late 2008" but declined dramatically when mortgage rates began to fall, however they nevertheless "constituted a large proportion of our non investment-related disputes."

Over the year the report highlighted a growth in mortgagee sales though "Our experience has shown that banks have made considerable efforts to assist customers to work through hardships and keep their properties."

The Ombudsman received 27 complaints linked to mortgagee sales, of which nine resulted in formal investigations and two led to settlements with complainants.

More than 23 complaints were lodged in relation to allegations of banks' irresponsible lending, particularly with relation to property.

However, the report said, "We note that in the post 2008 environment, most banks have considerably tightened their lending criteria and stopped the practice of ‘low doc' loans, where less rigorous documentation is required."