I MANAGED TO GET SOME CHICK CRUMB
I've been having a bit of a mare trying to find somewhere who stock it locally, but I've found a pet shop franchise in a garden centre who can get me a 20kg bag for £9.60.
Not sure how cheap that is in the big scheme of things, but its certainly better than £18.99 for a 7.5kg bag of Worlds Best lol!
I'll be picking it up later in the week, so will be interested to see how Max gets on with it. Much as I love WB, its is veeeeeery expensive, so if this is as good as Gillian & Co say it is, I'll be one happy lil' Clarey