Snapped filler flap on Passat

[austin]

I cunningly managed to snap off the fuel filler flap on our Passat estate (04).

Any ideas about how you go about fitting a new one?

I'm guessing that I would go from the inside of the car somehow.
I do hope it's not going to be one of those stupid things that involves taking most of the car apart.

It's snapped off cleanly but I don't fancy Araldite working that well