Tire Bubble problems of the 2013 Hyundai Accent

I have kumho solus kh25 tires with several bubbles in (3) of my tires. . My car is less than two years old. . With a little over 22,500 miles. The first bubble I notice, was at my first scheduled service. . The dealer keeps telling me . . That because I have low profile tires. . I will be subject to getting bubbles in them if I hit potholes. . I live in a city where every street has some kind of pothole in it. . I also have two other cars that I have had much longer than this one. . Riding the same streets with" no bubbles". So if I want to keep this vehicle. . . I should expect to be changing tires once or twice a year. . . The left front tire has (3) bubbles, the right front tire has (2)bubbles, the right rear has (1)bubble. . I really believe that something is wrong with the side walls of these tires. . . I even contacted kumho. . To no avail. . I am worried about the safety of my family and myself. . . Ihave been driving for over 40 years and never had problems with any of my tires like this. . . Ever!! it would be greatly appreciated if someone could look into this matter ASAP. . .