Make sure you've put in the installation, billing or delivery postcode you gave us when you placed your order. If you've asked us to deliver your equipment elsewhere, you may need to use that one.
If your order was because you're moving premises, you can enter your old postcode or your new one.
If it still doesn't work, you can either chat online with us, or call. Just click on Contact us on the right of this page. You'll need to have your order reference to hand. You'll find this in your order confirmation email.