Pelleted poultry manure 15kg sack for £2.49. Haven't opened it yet but at that price it's got to be good! They were also selling 10kg tubs for £5.99!
Thanks need to get some this year so will look at the range first and hope they have some in my local one.
They were in sacks, and stacked at the end of an aisle rather than with the other ones.
Unfortunately, the Leicester store seemed to be sold out but they the had good looking onion sets (which I bought as earlier purchases have rotted while awaiting planting) and some interesting packs of seed potatoes (including a red white and blue "heritage" pack for 1,99) but they'd all suffered from being stored too long in the warm.