Quick update... Try this, basically instead of matching for the correct format match for incorrect: 
if($payment !~ m/[0-9]\.[0-9]{3}|[a-z]|\,[0-9]{2}\,|\,[0-9]{2}\./)
{
  print "*match*$payment*match\n";

[download]
there...

In reply to Re: Regular Expression Currency Check by cool_jr256
in thread Regular Expression Currency Check by Anonymous Monk

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