Date format for account statements in AX 2012

Any idea how to change date format in Internal Customer Account Statement in AX 2012? I want the date format like date/month/year. Previously all of the statements including the sales invoice was coming month/date/year format but when I changed the Language of customer to "en-gb", the sale invoice and external customer account statement is coming d/m/y format. But still internal customer account statement is coming m/d/y format. Any guess or solution from anybody?

Thanks in advance,

Dhanoop