I got some of the older larger size 4pack double deckers from home bargains for £1

Only the 4 packs are in the offer. The 3 + 1 free aren't in the offer!

Any of them still full size bars ?

Heat for the chocky, good deal. Picked some up but watch it at the till as they tried to charge for four until I told them. They had to get a supervisor who said she'd have to contact head office etc. But let me have the deal in the end. Phew nearly wasn't worth it.