Dishonesty and **** to me

In October 2019 i bought my wife a B200 Mercedes from Nissan Springs. When i bought the vehicle i specifically asked the Sales guy about the tires on the car and i asked him to confirm if they are run flat tires. I even told him about the horrible experience i had when i bought my Mercedes only finding out months later that the dealership only supp**** cheap/ non run flat tires on my car and i had to replace the tires. He assured me that the B200 has Run flat tires on and that Nissan would not allow then to vary from the required tires even on the second hand side o the dealership and that they added new run flat tires to the front of the car. Now today i had a FLAT on the right rear tire on the B200 only to find out from Tiger wheel that the front tires are not run flats??? O my goodness and i use this car for holidays... what if i had a flat on my way down to ballito i would be stranded!! I am horribly disappointed in Nissan Springs and the TOTAL LIE i was told when they sold me the car!! now AGAIN i had to buy 2 new tires. ! How can companies get away with adding tires on a car that is not part of specs.. i mean my Mercedes don't even come with a spare tire so they are actually putting me in danger and leaving me stranded so they can save a view rand as the run flats are more expensive !! I am just shocked !!!