Bella vista custom homes and remodeling

New home , they installed the cooking range sitting on top of the gas supply valve, the range was not close to sitting level because the stove was sitting on top of the valve, after relocating the gas supply , they did not do a gas line pressure test. Our house was having mysterious episodes of shaking and felt and sounded like a truck was hitting our house , or maybe sonic booms , no gas was leaking into the upstairs and exploding. They will not even call us.