My apologies that it didn't work out for y'all; I think we've got a reasonable outcome - a free bottle for every case, though I can't help but wonder why 40-bottle 'value packs' were advertised if they only had 37 bottles in stock

By the way, there's no 'cancel' button to cancel the order within Amazon...I had to click a button to send a message to the sender to cancel it, which rather begs the question of why they can't just do it from their end, though to be fair, I have no idea what the Amazon 'back end' looks like (oo-er Missus).
I won't be taking them up on their 20% off offer; for £1.50 a bottle I can buy full ones!
Cheers