UPDATE:
Well I took the bike to My LBS (The original bike shop)that many friends recomended and they fixed the problem.
Here is what happen .
When I purchased the frame the original owner used a smaller seat post clamp and seat post ,thus crushing in the aluminum tube inside a bit .MY LBS spread the tube open a tab a used a reamer like Fietsbob suggested as well.
All it well now with my new seat post and clap on my ORBEA now to put the reamer in the Scattante..

Thanks all for the help!