2005 Ibiza Cupra 1.8T Gearbox needed (GVZ)

[MR ROBERT JOHNSON]

Hi. New to this forum. On Friday the gearbox broke driving home from work. Felt a small crunch and the car juddered. Won't go into 4th or 5th gear and spat all the oil out and the clutch is slipping badly. Struggling to find a gearbox. The code on the current broken gearbox is GVZ. Any help would be appreciated