Cash register warns of competitors :
Bad letter from the medical insurance firm
Picture Alliance
Many insured folks swap to the reasonably priced medical insurance firm BKK Firmus. The competitors reacts with questionable strategies.
https://www.faz.net/aktuell/finanzen/reaktion-auf-bkk-firmus-boeser-brief-von-der-krankenkasse-accg-110820541.html