Thanks for that, thats really useful.
I actually put down 0.18 when I wanted 0.20 which actually gives me 11.10, I got confused.
However,
The price matrix works like this
Zone 1:
0-30 = £5.50
31 - 99 = 0.20 per kilo thereafter
100+ = 19.50 + 0.18 per kilo thereafter 100 kilos
Pallets = £50...