No, because the delivery address is saved and the commodity is usually paid by bank transfer.
Order Changes or Cancellations
Orders for precious metals are binding once confirmed because prices are locked based on live market prices. Due to price fluctuations cancellations are generally not possible after confirmation referring to the Distance Selling Regulation 2000 and German Civil Code § 312d clause 4 No. 6.
Once an order has been confirmed it cannot be modified. If you wish to purchase additional products you can simply place a new order.