For enthusiasts and researchers of the Great Eastern Railway
The shopping cart shows the items you have selected to buy. To remove an incorrect item, click the red cross next to the item. To adjust the quantity (in most cases you only need one, but it may say more if an order didn't go through and you started the whole ordering process again) click on the quantity box and overwrite the value with, say, 1. Now click the blue symbol with the two circular arrows to register the new value. If you don't click the blue symbol, the quantity will not be changed.
Note, if an order was not successful, it is generally not necessary to reselect the products: the Shopping Cart remains as it was until a successful order is completed. So to try the payment process again, you should be able to start with the Shopping Cart.
CLICK YOUR BROWSER BACK BUTTON TO RETURN TO THE PREVIOUS PAGE, OR CLICK THE CONTINUE BUTTON BELOW TO GO TO THE MAIN EMPORIUM PAGE.