My interior light in my EF Gli doesn't work anymore. I have put in the footwell lighting and that still works fine.
I have checked the wiring on the roof dome and it's all fine. The globe is not blown and i have also tried numerous globes, different wattages, leds etc but it still doesn't work.
Any ideas?

Can't be much
There are only 2 wires - they both run back to the right c pillar where they connect up to the body loom.

One is constant + and the other is - when the light should be on. Grab a multimeter and see what you can find.

They seem to be really fussy how the globe contacts..check the contact on the earth(outside of the globe) is actually touching the globe...