I know it was posted on here a few months back and expired but it was instock at Leamington today and they had a few so probably worth having a look in local branches.
I grabbed one of these for online listings etc(kept getting put on spam lists with other).
Sure its basic but handy as a spare, in the glovebox, for the kids, gran etc. In my experience the batteries on these type phones last forever when not used.
Bonus it comes with a pound of credit.