Astra twintop petrol filler flap won't open

[leer76]

Hi all

My petrol filler flap is locked shut and I need to access the solenoid to release it but access does not seem as easy as the hatchback. Does anyone know how to either release the flap or get access to the solenoid 

[Vauxhall Owners Club]

 

[AndyR]

I wonder if this would be the same on the mk4 (G) as well. Might have a look tomorrow.