Question about trading assistant interview at Sainbury's?

Hey everybody,

So later tonight at about 21:00 I have an interview for a trading assistant job at my local big sainsburys. The job will be overnight when they are closed so it will probably just be shelf stacking and that sort of thing.

I was wondering if anyone here has been for a similar interview lately for sainsbury's? I mainly want to know if its likely to be an individual or group interview, my email only said "in person" so that could be either lol.