Found these yesterday in Becton branch. Bought a few but loads still there.
Bet you are going to grab the lot now!!
There own website sells them 15 for £14.24 so really a bargain.
I bought them at a show 3 for £5 last year.
They will fill you sooner than you can finish it.
Normally I used to treat them as gold bar at 30p per heart but now I finish the pack in one go.....
Looks like it's national according to 2 HUKD's here