📝 57% discount applied to BIN0087 (unit price £32.00, discounted to £27.52 each). Carriage charge £7.95 (no discount applied). Net value after discount for bins: £55.04 but invoice subtotal shows £35.47 suggesting only 2 x £27.52 = £55.04 less carriage discrepancy - subtotal per invoice is £35.47.