Porkchop it applies to the whole order. I assume if we order enough stuff it might eventually bump it up a bracket, but I've been putting everything in the cart as we go to check that and so far has not changed.
I'm gonna go through it all tonight and work out if I can just submit the whole order via the .org site (also, why does the logo say .co.uk? Far out it could not be more confusing). I think the only item not in the new .org site is the 240 V1 strut tops, but @Maximus has said he'll take the V2 strut tops (which are on the site) if necessary. The only item not available on the old site is those brake hose brackets.