How to unlock a broken Vauxhall Astra petrol cap

How to unlock a broken Vauxhall petrol cap (astra) - I went to fill up my petrol tank but couldn't unlock my petrol cap, after a number of attempts I gave up.
It's Christmas I have no money to spend on trying to fix this at a dealership so I created this video to show you how I managed to gain access and fill up my tank!!!