To add a new delivery address, just head on over to your address book. Remember to tick 'make my default address'. Any changes to your order will need to be made before your cut-off time if you want it to be in place for your next box.
If you have multiple orders, you'll need to set this as the address for each four punnet snack box order you'd like to change. You can do this from your orders page. Click 'manage recurring order' or 'manage one-off order' for the order you wish to change, then choose your new address from the 'where to?' box.
When checking out via the graze shop, your default address will always be automatically selected for you. Be sure to change this if you want your shop order to be sent somewhere else!
No changes can be made to your shop order once its been placed, so do double-check that your address is correct before confirming your order!