The Post Office is to investigate further whether accounting software used by its branches it to blame for unexplained losses.
Due to errors, postmasters and mistresses have had to pay for discrepancies, have been fined or in some cases imprisoned.
Action group Justice for Subpostmasters Alliance (JFSA) claims Horizon software, used by thousands of Post Offices nationwide, is to blame for these accounting discrepancies in some cases.
Close to 100 subpostmasters and mistresses have registered an interest in suing the Post Office regarding the computer system.
The Post Office denies that there is a problem with the system and has since made efforts to investigate.