Big Problems

We just had our master bath redone with granite counter tops and statuary marble floors and shower with granite inserts. The statuary marble is bright white with gray veining. The tiles came from the supplier very glossy, with a mirror like finish. When the job was completed the finish on the tiles was dull and does not feel smooth to the touch, It looks like it was wiped with a dirty rag, but the smear marks are permanent. The contractor hired a restoration company who worked on it for some time with limited results. They finally got a better result with some crystals and steel wool. They recommend not to seal the marble. I am wondering if this treatment is a temproary fix,will I have trouble in the future. Should I seal this installation. Am I totally screwed. Your opinion please. John Barth