ok, in ur view , was there a reason regarding your may be rejection(although i wish its not the rejection) , I mean were u lacking/on just on threshold of 67 points, ur job descriptions did not match ur NOC etc.
Plz first share ur details, then I think any body could be able to make any suggestion.(although I think it ll be only a prediction as no one could not know the real reason unless u receive the official letter)
Good luck