Gearbox and clutch rebuild

[Let off some steam Bennett]

I had my gearbox and clutch rebuilt recenty, i would say the gearbox has done 300 miles top and the clutch around 20 miles. I started the car last night to gibe it a run and the gearbox or clutch sounds very clattery. It goes in to gear ok but the clutch feels a lot worse than it did before it was rebuilt. The clutch was last changed in 2010, i had it rebuilt as i did everyhing to the car i could while it was having its chassis restored. Any ideas