Business PLK back-tracks 6 December 2004 The reason for PLK's troubles is the underfunding of its main client, Przewozy Regionalne, which owes PLK zł.880 million. More from Business All Yesterday 88.3% of Poles choose products from promotional flyers when shopping 2 days ago Poland prepares major highway upgrades as congestion grows 2 days ago Paid DataWalk secures U.S. patent protection for AI technology