Not wanting to appear to be totally mad by talking to myself, but I think I've solved this.
No.22 on the diagram - N10709001 - M12 × 1.5 × 78 mm - Aluminium bracket to gearbox (3 required)
No. 24 on the diagram - N10552404 - M12 x 1.5 x 70 mm - Aluminium bracket to gearbox mount (3 required)
This is for a manual gearbox, not sure if DSG is the same.