If a gearbox has a physical hole in it, then it's most likely from impact damage.

In which case it is nothing at all to do with VW. You would need to PROVE it was a manufacturing defect.

As above - unless you can show, at your cost, that something failed inside and punched the hole in the casing then the damage has obviously been caused by external means, so not manufacturer's or dealer's responsibility.

There is no evidance of impact damage as it was protected by a tray. The video shows you the metal pieces and what looks like a bearing that has exploded through the casing. VW UK are being very difficult and not very helpful even though the technician has advised us that it is an internal problem. Where do i go for assistance? Thanks