2010 MINI COOPER S Wheels Problems

I HAVE OWNED THIS VEHICLE FOR 1 YEAR AND THREE MONTHS. I DID NOT HAVE THE CHOICE OF SELECTING ANY OTHER TIRE. MINI COOPER( BMW) PUT RUN FLATS ON VEHICLE BECAUSE THERE IS NO WHERE FOR A SPARE TIRE. I KEEP THE VEHICLE IN THE GARAGE AT A CONDO IN FLORIDA WITH NO ACCESS TO ANYONE. I HAVE 4250 MILES ON THE VEHICLE. I HAVE HAD THREE FLATS. MINI RELATED THAT I HAD THE OPPORTUNITY TO BUY A TIRE AND SUSPENSION WARRANTY WHEN NEW FOR 800.00 PLUS DOLLARS. I CAN'T REMEMBER THE LAST TIME I HAD ONE FLAT ON ANY OTHER VEHICLE. MY WIFE OR I HAVE USED THIS VEHICLE FOR LESS THAN 5 MONTHS AND THIS IS THE THIRD FLAT. MINI DENIES ANY DEFICIENCIES WITH THE TIRES BUT I DON'T BELIEVE THEM. THIS AVERAGES OUT TO A FLAT ABOUT EVERY 1400 MILES. MY FATHER GOT BETTER MILEAGE OUT OF...