Rumours are flying that Fresenius Helios is seeking to get €80m back from Dr Walter Wuebben for Damp Gruppe, the North German hospital chain it purchased in the autumn of 2011. Fresenius Helios declined to comment and Dr Wuebben did not return our calls. Meanwhile, a messy labour dispute with a Damp subsidiary is starting to affect patient intake at some Damp units.