Several health insurance companies have a fare with us, which is valid for several years. 1.Why do I get as a rental car less per kilometer like a taxi? 2.Theoretically it would be worthwhile if I received a concession that I change my company to taxis and thus get a higher mileage? 3.Is it true that the rental car receives the “round kilometers” and taxes don’t? e.g. drive a patient from home to the D ialyse ( Arrive is 50 kilometers, then I get as a rental car entrepreneur Arrive 50Kilomter and the return trip and the taxi entrepreneur gets only one ride,for a higher kilometer of money? 4.Moreover, I would be interested in whether wheelchair transports are paid higher, if how much higher? Is that worth it? 5. If you are a rental car private patient for dialysis, do you then calculate the normal fare or higher?`As a rental car you have no price binding. If it were for now, it would be nice if someone could help me.