In the US, there was a class action lawsuit for that issue.

exactly what? holes in the floorboard or the corrosion of a wire into the transmission computer?

the leaking of water into the footwell.

RE: sunroof drains

also battery box drains

any fixes for this or do I just have to improvise?

if its at the dealership they should not only be able to take care of the issues with they drains, they SHOULD just take care of it. Double check with the service manager before you pick it up.

drilling a hole in the floorboard is not the answer.