I had new Kronotex designer series laminate flooring installed in my kitchen and dining room recently. After 6 weeks two places of the floor, which is installed on top of sheet vinyl on a slab, is buckling in two places. The installer can't be reached by phone but I'm still trying. The laminate is 0.315" thick but I think does not have enough gap at the walls. What to do to get it flat again? The new look is great but I can feel the buckled spots when I walk.