Noticed earlier yesterday my local store still had these chocolate bars at the till area marked down in a christmas clearance deal for 15p (75% off).
As far as im aware, all remaining stock of these chocolates are available at this price in all Co-op stores, or at least all stores that stocked them on a display stand over christmas time.
If you like the Galaxy Caramel chocolate bar then you will appriciate this deal, they're tastey... i know!
Move fast though for your sugary treats though! The deal will expire when the stock runs out, which will probably be soon.