The packaging says £1.99 but they scan at £1 and the ticket underneath them said £1 so would have thought this was nationwide! It seemed to be any of them (they had 2 types).
Mine was from Southampton.
Will stop you using that stuff that rips through your fingers for a while ;)
Edit: seems to confirm the price online http://groceries.iceland.co.uk/andrex-c2-ae-gentle-clean-4-rolls/p/65128