Ok this may very well be just in my petrol station (Bramingham Park, Luton), but could be elsewhere. I am getting my fuel and notice the Yorkie on sale from 52p to 26p, that'll do I think and grabbed a few (shelf full). Get to the cashier and she goes have a look at the Mars Duo, turn round to see it's 10p and the shelf was heaving. Grabbed 8 as Mars aint my favourite choccy bar but at 10p even I will eat it. I asked her if it was being discontinued and she said it was a promotion, bit weird if you ask me but whatever.
I dunno if the price was the same in the store as it had just shut.
Gotta love the Sainsburys sale tags.
Had it been Snickers I would have emptied the shelf.