Disco, the Argentine unit of troubled Dutch retailer Ahold, has asked its parent company to provide more information regarding Ahold’s decision to revise downward Disco’s results for 2002.

Earlier this week Ahold announced it had completed its companywide internal accounting investigation and had found a total of €970m (US$1.1bn) in irregularities, of which €8m related to accounting problems at Disco.

In a filing to Argentina’s stock exchange, Disco’s acting vice president Jesus Fernandez de Gabriel said Disco had asked Ahold for “reports related to that announcement, with the aim of knowing the adjustments and modifications that it should carry out” to its accounts, reported Dow Jones International News.

He also requested “suggestions…to identify the new controls and procedures that should be applied” to prevent a similar occurrence.