Any wrapping used in a Fish and Chip shop is unable to be recycled.
Paper, cardboard or polystyrene all have to be put into the rubbish, we can’t put used cardboard or paper on the compost as it attracts rats, it’s always covered in grease no matter how quickly we get it home and unwrap it ( we seldom go to the fish and chip shop anyway though)
Foil cartons like they use in Indian/Chinese takeaway food is better, the foil can be washed and recycled leaving only the lids to go into the rubbish, maybe they could be persuaded to use these too?
But as polystyrene lasts for ever it’s a good move to totally ban it, wherever it’s used.