A mother who lost her daughter in 2003, in a sailing accident, is reported as saying that the holiday company treated her "like flotsam" during her 13-year battle for justice.
11-yo Laura Morgan of Nottinghamshire died at a Sunsail resort when she was trapped under a catamaran.
A Greek court found 3 employees of UK-based Sunsail guilty of causing death by negligence in 2006.
One was cleared on appeal. The two others were given suspended prison terms after another hearing in 2007. Their appeals were rejected in 2010.
The civil case for damages was launched in Greece in 2011 and was resolved last week.
The claim for compensation was originally pursued by the family through the Greek courts.
A week-long inquest in Nottingham in 2012 heard that Laura's catamaran was caught by the wind and turned over on its side at a resort in Vounaki, near Paleros.
She became trapped underneath when her trapeze harness - which allows sailors to lean out to help steer the boat - was tangled in the rigging, the inquest heard.