Shower leaks 2 years later

Local dealer installer remodeled our master bath and, ironically, the dining room below where the water has been spilling for who knows how long. Should I hesitate going back to the business? It was a Schluter install so we assumed it was water proof

Local dealer installer remodeled our master bath and, ironically, the dining room below where the water has been spilling for who knows how long. Should I hesitate going back to the business? It was a Schluter install so we assumed it was water proof