Master Bath Shower Drain

Communicating with our plumbers has not been easy. For instance, they didn't move the shower drain (originally a bathtub) to the center of the shower. Even though we told them a bench would be built. The tile guys (whom has since fallen off the face of the earth) said the drain should be centered. The plumbers came back and fixed the problem. The last picture shows the half shower wall and orange shower pan.