Welsh MP for Clwyd West David Jones is seeking a Commons
debate after post masters raised questions over the Post Office's
Horizon accounting system.
He told BBC Wales, "I am sure something is going on and the Post
Office needs to answer the questions that these people are asking.
I am going to ask for a debate at the House of Commons."
BBC
Wales investigated the problem for the current affairs
programme Taro Naw, broadcast on Tuesday on S4C.
The programme follows up on Computer Weekly's investigation into
IT at the Post Office.
Computer Weekly spoke to post masters who had experienced
problems with their accounts, finding deficits they could not
explain. Some lost their life savings or became bankrupt paying
back the deficits, and said they suspected their accounts system
Horizon of producing the anomalies. The Post Office denied there
were any problems, and said the system is robust and processes
millions of transactions every day.